977580913 has 4 divisors (see below), whose sum is σ = 1029032560. Its totient is φ = 926129268.

The previous prime is 977580893. The next prime is 977580941. The reversal of 977580913 is 319085779.

977580913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319085779 = 1187 ⋅268817.

It is a cyclic number.

It is not a de Polignac number, because 977580913 - 2⁵ = 977580881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977580943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25725795 + ... + 25725832.

It is an arithmetic number, because the mean of its divisors is an integer number (257258140).

Almost surely, 2^977580913 is an apocalyptic number.

It is an amenable number.

977580913 is a deficient number, since it is larger than the sum of its proper divisors (51451647).

977580913 is a wasteful number, since it uses less digits than its factorization.

977580913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51451646.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 977580913 is about 31266.2903619857. The cubic root of 977580913 is about 992.4704187010.

The spelling of 977580913 in words is "nine hundred seventy-seven million, five hundred eighty thousand, nine hundred thirteen".