11786920 has 16 divisors (see below), whose sum is σ = 26520660. Its totient is φ = 4714752.

The previous prime is 11786911. The next prime is 11786927. The reversal of 11786920 is 2968711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10876804 + 910116 = 3298^2 + 954^2 .

It is not an unprimeable number, because it can be changed into a prime (11786927) by changing a digit.

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, 147297 + ... + 147376.

Almost surely, 2^11786920 is an apocalyptic number.

11786920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11786920 is an abundant number, since it is smaller than the sum of its proper divisors (14733740).

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

11786920 is a wasteful number, since it uses less digits than its factorization.

11786920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294684 (or 294680 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 11786920 is about 3433.2084119669. The cubic root of 11786920 is about 227.5796605465.

The spelling of 11786920 in words is "eleven million, seven hundred eighty-six thousand, nine hundred twenty".