47231449 has 4 divisors (see below), whose sum is σ = 47936464. Its totient is φ = 46526436.

The previous prime is 47231417. The next prime is 47231461. The reversal of 47231449 is 94413274.

It is a happy number.

47231449 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 47231449 - 2⁵ = 47231417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47261449) 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, 352407 + ... + 352540.

It is an arithmetic number, because the mean of its divisors is an integer number (11984116).

Almost surely, 2^47231449 is an apocalyptic number.

It is an amenable number.

47231449 is a deficient number, since it is larger than the sum of its proper divisors (705015).

47231449 is an equidigital number, since it uses as much as digits as its factorization.

47231449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705014.

The product of its digits is 24192, while the sum is 34.

The square root of 47231449 is about 6872.5140232669. The cubic root of 47231449 is about 361.4740206826.

The spelling of 47231449 in words is "forty-seven million, two hundred thirty-one thousand, four hundred forty-nine".