11856836 has 12 divisors (see below), whose sum is σ = 21841680. Its totient is φ = 5616360.

The previous prime is 11856821. The next prime is 11856841. The reversal of 11856836 is 63865811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 11856836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77930 + ... + 78081.

It is an arithmetic number, because the mean of its divisors is an integer number (1820140).

Almost surely, 2^11856836 is an apocalyptic number.

It is an amenable number.

11856836 is a deficient number, since it is larger than the sum of its proper divisors (9984844).

11856836 is a wasteful number, since it uses less digits than its factorization.

11856836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156034 (or 156032 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 11856836 is about 3443.3756693106. The cubic root of 11856836 is about 228.0287488115.

The spelling of 11856836 in words is "eleven million, eight hundred fifty-six thousand, eight hundred thirty-six".