23656329 has 6 divisors (see below), whose sum is σ = 34170266. Its totient is φ = 15770880.

The previous prime is 23656327. The next prime is 23656331. The reversal of 23656329 is 92365632.

It is an interprime number because it is at equal distance from previous prime (23656327) and next prime (23656331).

It can be written as a sum of positive squares in only one way, i.e., 12766329 + 10890000 = 3573^2 + 3300^2 .

It is not a de Polignac number, because 23656329 - 2¹ = 23656327 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23656293 and 23656302.

It is not an unprimeable number, because it can be changed into a prime (23656327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1314232 + ... + 1314249.

Almost surely, 2^23656329 is an apocalyptic number.

It is an amenable number.

23656329 is a deficient number, since it is larger than the sum of its proper divisors (10513937).

23656329 is a wasteful number, since it uses less digits than its factorization.

23656329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628487 (or 2628484 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 23656329 is about 4863.7772358528. Note that the first 3 decimals coincide. The cubic root of 23656329 is about 287.0664578380.

It can be divided in two parts, 236 and 56329, that added together give a palindrome (56565).

The spelling of 23656329 in words is "twenty-three million, six hundred fifty-six thousand, three hundred twenty-nine".