47262421 has 4 divisors (see below), whose sum is σ = 47320672. Its totient is φ = 47204172.

The previous prime is 47262409. The next prime is 47262433. The reversal of 47262421 is 12426274.

It is a happy number.

47262421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (47262409) and next prime (47262433).

It is a cyclic number.

It is not a de Polignac number, because 47262421 - 2¹¹ = 47260373 is a prime.

It is a super-3 number, since 3×47262421³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47262421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47262491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27891 + ... + 29536.

It is an arithmetic number, because the mean of its divisors is an integer number (11830168).

Almost surely, 2^47262421 is an apocalyptic number.

It is an amenable number.

47262421 is a deficient number, since it is larger than the sum of its proper divisors (58251).

47262421 is an equidigital number, since it uses as much as digits as its factorization.

47262421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58250.

The product of its digits is 5376, while the sum is 28.

The square root of 47262421 is about 6874.7669778691. The cubic root of 47262421 is about 361.5530155567.

Adding to 47262421 its reverse (12426274), we get a palindrome (59688695).

The spelling of 47262421 in words is "forty-seven million, two hundred sixty-two thousand, four hundred twenty-one".