23329985 has 16 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 15925056.

The previous prime is 23329979. The next prime is 23329991. The reversal of 23329985 is 58992332.

It is an interprime number because it is at equal distance from previous prime (23329979) and next prime (23329991).

It is not a de Polignac number, because 23329985 - 2¹⁸ = 23067841 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6971 + ... + 9759.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^23329985 is an apocalyptic number.

23329985 is the 2789-th octagonal number.

It is an amenable number.

23329985 is a deficient number, since it is larger than the sum of its proper divisors (8810815).

23329985 is a wasteful number, since it uses less digits than its factorization.

23329985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040.

The product of its digits is 116640, while the sum is 41.

The square root of 23329985 is about 4830.1123175347. The cubic root of 23329985 is about 285.7402935254.

The spelling of 23329985 in words is "twenty-three million, three hundred twenty-nine thousand, nine hundred eighty-five".