977465765 has 4 divisors (see below), whose sum is σ = 1172958924. Its totient is φ = 781972608.

The previous prime is 977465759. The next prime is 977465791. The reversal of 977465765 is 567564779.

977465765 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.

It can be written as a sum of positive squares in 2 ways, for example, as 745999969 + 231465796 = 27313^2 + 15214^2 .

It is a cyclic number.

It is not a de Polignac number, because 977465765 - 2²² = 973271461 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 977465765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97746572 + ... + 97746581.

It is an arithmetic number, because the mean of its divisors is an integer number (293239731).

Almost surely, 2^977465765 is an apocalyptic number.

It is an amenable number.

977465765 is a deficient number, since it is larger than the sum of its proper divisors (195493159).

977465765 is a wasteful number, since it uses less digits than its factorization.

977465765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195493158.

The product of its digits is 11113200, while the sum is 56.

The square root of 977465765 is about 31264.4488996688. The cubic root of 977465765 is about 992.4314498990.

The spelling of 977465765 in words is "nine hundred seventy-seven million, four hundred sixty-five thousand, seven hundred sixty-five".