11662920 has 64 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 3109824.

The previous prime is 11662919. The next prime is 11662921. The reversal of 11662920 is 2926611.

11662920 is a `hidden beast` number, since 1 + 16 + 629 + 20 = 666.

11662920 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 an interprime number because it is at equal distance from previous prime (11662919) and next prime (11662921).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11662921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4320 + ... + 6479.

It is an arithmetic number, because the mean of its divisors is an integer number (607500).

Almost surely, 2^11662920 is an apocalyptic number.

11662920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11662920 is an abundant number, since it is smaller than the sum of its proper divisors (27217080).

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

11662920 is a wasteful number, since it uses less digits than its factorization.

11662920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10819 (or 10809 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 11662920 is about 3415.1017554386. The cubic root of 11662920 is about 226.7787892036.

It can be divided in two parts, 116 and 62920, that added together give a palindrome (63036).

The spelling of 11662920 in words is "eleven million, six hundred sixty-two thousand, nine hundred twenty".