23173456 has 20 divisors (see below), whose sum is σ = 45077472. Its totient is φ = 11540576.

The previous prime is 23173441. The next prime is 23173471. The reversal of 23173456 is 65437132.

It is an interprime number because it is at equal distance from previous prime (23173441) and next prime (23173471).

It is a super-3 number, since 3×23173456³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455 + ... + 6961.

Almost surely, 2^23173456 is an apocalyptic number.

It is an amenable number.

23173456 is a deficient number, since it is larger than the sum of its proper divisors (21904016).

23173456 is a wasteful number, since it uses less digits than its factorization.

23173456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778 (or 5772 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 23173456 is about 4813.8815938907. The cubic root of 23173456 is about 285.0998152481.

The spelling of 23173456 in words is "twenty-three million, one hundred seventy-three thousand, four hundred fifty-six".