23457447 has 36 divisors (see below), whose sum is σ = 38245480. Its totient is φ = 13771296.

The previous prime is 23457443. The next prime is 23457449. The reversal of 23457447 is 74475432.

It is not a de Polignac number, because 23457447 - 2² = 23457443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23457443) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61704 + ... + 62082.

Almost surely, 2^23457447 is an apocalyptic number.

23457447 is a deficient number, since it is larger than the sum of its proper divisors (14788033).

23457447 is a wasteful number, since it uses less digits than its factorization.

23457447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 418 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 23457447 is about 4843.2888619202. The cubic root of 23457447 is about 286.2597238041.

The spelling of 23457447 in words is "twenty-three million, four hundred fifty-seven thousand, four hundred forty-seven".