11977164 has 18 divisors (see below), whose sum is σ = 30275700. Its totient is φ = 3992376.

The previous prime is 11977157. The next prime is 11977193. The reversal of 11977164 is 46177911.

11977164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 332699 = 11977164 / (1 + 1 + 9 + 7 + 7 + 1 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166314 + ... + 166385.

Almost surely, 2^11977164 is an apocalyptic number.

It is an amenable number.

11977164 is an abundant number, since it is smaller than the sum of its proper divisors (18298536).

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

11977164 is a wasteful number, since it uses less digits than its factorization.

11977164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332709 (or 332704 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 11977164 is about 3460.8039528410. The cubic root of 11977164 is about 228.7975302112.

The spelling of 11977164 in words is "eleven million, nine hundred seventy-seven thousand, one hundred sixty-four".