23479431 has 16 divisors (see below), whose sum is σ = 34219008. Its totient is φ = 14256000.

The previous prime is 23479427. The next prime is 23479441. The reversal of 23479431 is 13497432.

It is not a de Polignac number, because 23479431 - 2² = 23479427 is a prime.

It is a super-2 number, since 2×23479431² = 1102567360167522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23479392 and 23479401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23479441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5845 + ... + 9006.

It is an arithmetic number, because the mean of its divisors is an integer number (2138688).

Almost surely, 2^23479431 is an apocalyptic number.

23479431 is a deficient number, since it is larger than the sum of its proper divisors (10739577).

23479431 is a wasteful number, since it uses less digits than its factorization.

23479431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902.

The product of its digits is 18144, while the sum is 33.

The square root of 23479431 is about 4845.5578626202. The cubic root of 23479431 is about 286.3491221210.

The spelling of 23479431 in words is "twenty-three million, four hundred seventy-nine thousand, four hundred thirty-one".