11864931 has 16 divisors (see below), whose sum is σ = 17256960. Its totient is φ = 7207200.

The previous prime is 11864903. The next prime is 11864981. The reversal of 11864931 is 13946811.

11864931 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11864931 - 2⁵ = 11864899 is a prime.

It is a super-2 number, since 2×11864931² = 281553175269522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11864892 and 11864901.

It is not an unprimeable number, because it can be changed into a prime (11864981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (1078560).

Almost surely, 2^11864931 is an apocalyptic number.

11864931 is a deficient number, since it is larger than the sum of its proper divisors (5392029).

11864931 is a wasteful number, since it uses less digits than its factorization.

11864931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946.

The product of its digits is 5184, while the sum is 33.

The square root of 11864931 is about 3444.5509141251. The cubic root of 11864931 is about 228.0806309156.

The spelling of 11864931 in words is "eleven million, eight hundred sixty-four thousand, nine hundred thirty-one".