23923812 has 48 divisors (see below), whose sum is σ = 64108800. Its totient is φ = 6867360.

The previous prime is 23923759. The next prime is 23923819. The reversal of 23923812 is 21832932.

It is a happy number.

It is a super-2 number, since 2×23923812² = 1144697561222688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23923812.

It is not an unprimeable number, because it can be changed into a prime (23923819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2262 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (1335600).

Almost surely, 2^23923812 is an apocalyptic number.

23923812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23923812 is an abundant number, since it is smaller than the sum of its proper divisors (40184988).

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

23923812 is a wasteful number, since it uses less digits than its factorization.

23923812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9576 (or 9574 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 23923812 is about 4891.1973994105. The cubic root of 23923812 is about 288.1443624244.

The spelling of 23923812 in words is "twenty-three million, nine hundred twenty-three thousand, eight hundred twelve".