23930985 has 32 divisors (see below), whose sum is σ = 43666560. Its totient is φ = 11086848.

The previous prime is 23930981. The next prime is 23931007. The reversal of 23930985 is 58903932.

It is not a de Polignac number, because 23930985 - 2² = 23930981 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23930981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295 + ... + 6924.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 2^23930985 is an apocalyptic number.

It is an amenable number.

23930985 is a deficient number, since it is larger than the sum of its proper divisors (19735575).

23930985 is a wasteful number, since it uses less digits than its factorization.

23930985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7257.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 23930985 is about 4891.9306004889. The cubic root of 23930985 is about 288.1731573475.

The spelling of 23930985 in words is "twenty-three million, nine hundred thirty thousand, nine hundred eighty-five".