11856870 has 24 divisors (see below), whose sum is σ = 30828096. Its totient is φ = 3161808.

The previous prime is 11856857. The next prime is 11856877. The reversal of 11856870 is 7865811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65782 + ... + 65961.

It is an arithmetic number, because the mean of its divisors is an integer number (1284504).

Almost surely, 2^11856870 is an apocalyptic number.

11856870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11856870 is an abundant number, since it is smaller than the sum of its proper divisors (18971226).

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

11856870 is a wasteful number, since it uses less digits than its factorization.

11856870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131756 (or 131753 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 11856870 is about 3443.3806063228. The cubic root of 11856870 is about 228.0289667721.

The spelling of 11856870 in words is "eleven million, eight hundred fifty-six thousand, eight hundred seventy".