11999975 has 12 divisors (see below), whose sum is σ = 16025016. Its totient is φ = 8861280.

The previous prime is 11999941. The next prime is 11999987. The reversal of 11999975 is 57999911.

It is not a de Polignac number, because 11999975 - 2⁸ = 11999719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18137 + ... + 18786.

It is an arithmetic number, because the mean of its divisors is an integer number (1335418).

Almost surely, 2^11999975 is an apocalyptic number.

11999975 is a deficient number, since it is larger than the sum of its proper divisors (4025041).

11999975 is a wasteful number, since it uses less digits than its factorization.

11999975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36946 (or 36941 counting only the distinct ones).

The product of its digits is 229635, while the sum is 50.

The square root of 11999975 is about 3464.0980066967. The cubic root of 11999975 is about 228.9426895225.

The spelling of 11999975 in words is "eleven million, nine hundred ninety-nine thousand, nine hundred seventy-five".