11855964 has 12 divisors (see below), whose sum is σ = 27663944. Its totient is φ = 3951984.

The previous prime is 11855959. The next prime is 11855989. The reversal of 11855964 is 46955811.

11855964 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 a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493987 + ... + 494010.

Almost surely, 2^11855964 is an apocalyptic number.

It is an amenable number.

11855964 is an abundant number, since it is smaller than the sum of its proper divisors (15807980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11855964 is a wasteful number, since it uses less digits than its factorization.

11855964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988004 (or 988002 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 11855964 is about 3443.2490470484. The cubic root of 11855964 is about 228.0231586202.

The spelling of 11855964 in words is "eleven million, eight hundred fifty-five thousand, nine hundred sixty-four".