11957886 has 24 divisors (see below), whose sum is σ = 26142480. Its totient is φ = 3950016.

The previous prime is 11957867. The next prime is 11957903. The reversal of 11957886 is 68875911.

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, 906 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^11957886 is an apocalyptic number.

11957886 is an abundant number, since it is smaller than the sum of its proper divisors (14184594).

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

11957886 is a wasteful number, since it uses less digits than its factorization.

11957886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000 (or 5997 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 11957886 is about 3458.0176402095. The cubic root of 11957886 is about 228.6747096122.

The spelling of 11957886 in words is "eleven million, nine hundred fifty-seven thousand, eight hundred eighty-six".