23989156 has 12 divisors (see below), whose sum is σ = 42366940. Its totient is φ = 11884320.

The previous prime is 23989127. The next prime is 23989171. The reversal of 23989156 is 65198932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11669056 + 12320100 = 3416^2 + 3510^2 .

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, 27075 + ... + 27946.

Almost surely, 2^23989156 is an apocalyptic number.

It is an amenable number.

23989156 is a deficient number, since it is larger than the sum of its proper divisors (18377784).

23989156 is a wasteful number, since it uses less digits than its factorization.

23989156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55134 (or 55132 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 23989156 is about 4897.8725994048. The cubic root of 23989156 is about 288.4064637547.

The spelling of 23989156 in words is "twenty-three million, nine hundred eighty-nine thousand, one hundred fifty-six".