23889966 has 16 divisors (see below), whose sum is σ = 48219600. Its totient is φ = 7890048.

The previous prime is 23889953. The next prime is 23889991. The reversal of 23889966 is 66998832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17611 + ... + 18918.

It is an arithmetic number, because the mean of its divisors is an integer number (3013725).

Almost surely, 2^23889966 is an apocalyptic number.

23889966 is an abundant number, since it is smaller than the sum of its proper divisors (24329634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23889966 is a wasteful number, since it uses less digits than its factorization.

23889966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36643.

The product of its digits is 1119744, while the sum is 51.

The square root of 23889966 is about 4887.7362858485. The cubic root of 23889966 is about 288.0084150705.

The spelling of 23889966 in words is "twenty-three million, eight hundred eighty-nine thousand, nine hundred sixty-six".