11580977 has 4 divisors (see below), whose sum is σ = 11799540. Its totient is φ = 11362416.

The previous prime is 11580971. The next prime is 11580979. The reversal of 11580977 is 77908511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 7187761 = 2096^2 + 2681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11580977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11580977.

It is not an unprimeable number, because it can be changed into a prime (11580971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109202 + ... + 109307.

It is an arithmetic number, because the mean of its divisors is an integer number (2949885).

Almost surely, 2^11580977 is an apocalyptic number.

It is an amenable number.

11580977 is a deficient number, since it is larger than the sum of its proper divisors (218563).

11580977 is an equidigital number, since it uses as much as digits as its factorization.

11580977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218562.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 11580977 is about 3403.0834547510. The cubic root of 11580977 is about 226.2464289293.

The spelling of 11580977 in words is "eleven million, five hundred eighty thousand, nine hundred seventy-seven".