23256765 has 96 divisors (see below), whose sum is σ = 50409216. Its totient is φ = 9676800.

The previous prime is 23256763. The next prime is 23256773. The reversal of 23256765 is 56765232.

It is a happy number.

23256765 is a `hidden beast` number, since 2 + 32 + 567 + 65 = 666.

It is not a de Polignac number, because 23256765 - 2¹ = 23256763 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23256763) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 230215 + ... + 230315.

It is an arithmetic number, because the mean of its divisors is an integer number (525096).

Almost surely, 2^23256765 is an apocalyptic number.

It is an amenable number.

23256765 is an abundant number, since it is smaller than the sum of its proper divisors (27152451).

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

23256765 is a wasteful number, since it uses less digits than its factorization.

23256765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 176 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 23256765 is about 4822.5268272971. The cubic root of 23256765 is about 285.4410530131.

The spelling of 23256765 in words is "twenty-three million, two hundred fifty-six thousand, seven hundred sixty-five".