23213986 has 16 divisors (see below), whose sum is σ = 35326368. Its totient is φ = 11440000.

The previous prime is 23213951. The next prime is 23213987. The reversal of 23213986 is 68931232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23213987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65586 + ... + 65938.

It is an arithmetic number, because the mean of its divisors is an integer number (2207898).

Almost surely, 2^23213986 is an apocalyptic number.

23213986 is a deficient number, since it is larger than the sum of its proper divisors (12112382).

23213986 is a wasteful number, since it uses less digits than its factorization.

23213986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737.

The product of its digits is 15552, while the sum is 34.

The square root of 23213986 is about 4818.0894553754. The cubic root of 23213986 is about 285.2659300979.

The spelling of 23213986 in words is "twenty-three million, two hundred thirteen thousand, nine hundred eighty-six".