47434121 has 4 divisors (see below), whose sum is σ = 54210432. Its totient is φ = 40657812.

The previous prime is 47434109. The next prime is 47434129. The reversal of 47434121 is 12143474.

47434121 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 a cyclic number.

It is not a de Polignac number, because 47434121 - 2¹⁴ = 47417737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47434129) 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, 3388145 + ... + 3388158.

It is an arithmetic number, because the mean of its divisors is an integer number (13552608).

Almost surely, 2^47434121 is an apocalyptic number.

It is an amenable number.

47434121 is a deficient number, since it is larger than the sum of its proper divisors (6776311).

47434121 is an equidigital number, since it uses as much as digits as its factorization.

47434121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776310.

The product of its digits is 2688, while the sum is 26.

The square root of 47434121 is about 6887.2433527501. The cubic root of 47434121 is about 361.9903159706.

Adding to 47434121 its reverse (12143474), we get a palindrome (59577595).

The spelling of 47434121 in words is "forty-seven million, four hundred thirty-four thousand, one hundred twenty-one".