23930986 has 4 divisors (see below), whose sum is σ = 35896482. Its totient is φ = 11965492.

The previous prime is 23930981. The next prime is 23931007. The reversal of 23930986 is 68903932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22992025 + 938961 = 4795^2 + 969^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 5982745 + ... + 5982748.

Almost surely, 2^23930986 is an apocalyptic number.

23930986 is a deficient number, since it is larger than the sum of its proper divisors (11965496).

23930986 is a wasteful number, since it uses less digits than its factorization.

23930986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11965495.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 23930986 is about 4891.9307026981. The cubic root of 23930986 is about 288.1731613614.

The spelling of 23930986 in words is "twenty-three million, nine hundred thirty thousand, nine hundred eighty-six".