23903812 has 6 divisors (see below), whose sum is σ = 41831678. Its totient is φ = 11951904.

The previous prime is 23903797. The next prime is 23903833. The reversal of 23903812 is 21830932.

It can be written as a sum of positive squares in only one way, i.e., 15872256 + 8031556 = 3984^2 + 2834^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2987973 + ... + 2987980.

Almost surely, 2^23903812 is an apocalyptic number.

It is an amenable number.

23903812 is a deficient number, since it is larger than the sum of its proper divisors (17927866).

23903812 is a wasteful number, since it uses less digits than its factorization.

23903812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5975957 (or 5975955 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23903812 is about 4889.1524827929. The cubic root of 23903812 is about 288.0640450417.

The spelling of 23903812 in words is "twenty-three million, nine hundred three thousand, eight hundred twelve".