11931868 has 12 divisors (see below), whose sum is σ = 22487080. Its totient is φ = 5506992.

The previous prime is 11931851. The next prime is 11931877. The reversal of 11931868 is 86813911.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 114678 + ... + 114781.

Almost surely, 2^11931868 is an apocalyptic number.

It is an amenable number.

11931868 is a deficient number, since it is larger than the sum of its proper divisors (10555212).

11931868 is a wasteful number, since it uses less digits than its factorization.

11931868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229476 (or 229474 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 11931868 is about 3454.2536096818. The cubic root of 11931868 is about 228.5087388346.

The spelling of 11931868 in words is "eleven million, nine hundred thirty-one thousand, eight hundred sixty-eight".