23656536 has 96 divisors (see below), whose sum is σ = 68228160. Its totient is φ = 7674912.

The previous prime is 23656531. The next prime is 23656541. The reversal of 23656536 is 63565632.

It is an interprime number because it is at equal distance from previous prime (23656531) and next prime (23656541).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23656536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23656531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83451 + ... + 83733.

It is an arithmetic number, because the mean of its divisors is an integer number (710710).

Almost surely, 2^23656536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23656536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34114080).

23656536 is an abundant number, since it is smaller than the sum of its proper divisors (44571624).

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

23656536 is a wasteful number, since it uses less digits than its factorization.

23656536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 331 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The square root of 23656536 is about 4863.7985155637. The cubic root of 23656536 is about 287.0672951415.

The spelling of 23656536 in words is "twenty-three million, six hundred fifty-six thousand, five hundred thirty-six".