11917924 has 12 divisors (see below), whose sum is σ = 21059584. Its totient is φ = 5900904.

The previous prime is 11917891. The next prime is 11917937. The reversal of 11917924 is 42971911.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11917924.

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 in 3 ways as a sum of consecutive naturals, for example, 14052 + ... + 14875.

Almost surely, 2^11917924 is an apocalyptic number.

It is an amenable number.

11917924 is a deficient number, since it is larger than the sum of its proper divisors (9141660).

11917924 is a wasteful number, since it uses less digits than its factorization.

11917924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29034 (or 29032 counting only the distinct ones).

The product of its digits is 4536, while the sum is 34.

The square root of 11917924 is about 3452.2346386073. The cubic root of 11917924 is about 228.4196896911.

The spelling of 11917924 in words is "eleven million, nine hundred seventeen thousand, nine hundred twenty-four".