23289656 has 16 divisors (see below), whose sum is σ = 47027400. Its totient is φ = 10749024.

The previous prime is 23289647. The next prime is 23289659. The reversal of 23289656 is 65698232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23289659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111866 + ... + 112073.

Almost surely, 2^23289656 is an apocalyptic number.

23289656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23289656 is an abundant number, since it is smaller than the sum of its proper divisors (23737744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23289656 is a wasteful number, since it uses less digits than its factorization.

23289656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223958 (or 223954 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 23289656 is about 4825.9357641809. The cubic root of 23289656 is about 285.5755517889.

The spelling of 23289656 in words is "twenty-three million, two hundred eighty-nine thousand, six hundred fifty-six".