977068765 has 8 divisors (see below), whose sum is σ = 1174789080. Its totient is φ = 780117312.

The previous prime is 977068739. The next prime is 977068777. The reversal of 977068765 is 567860779.

It can be written as a sum of positive squares in 4 ways, for example, as 22382361 + 954686404 = 4731^2 + 30898^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977068765 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189414 + ... + 194503.

It is an arithmetic number, because the mean of its divisors is an integer number (146848635).

Almost surely, 2^977068765 is an apocalyptic number.

It is an amenable number.

977068765 is a deficient number, since it is larger than the sum of its proper divisors (197720315).

977068765 is a wasteful number, since it uses less digits than its factorization.

977068765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384431.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The square root of 977068765 is about 31258.0991904498. The cubic root of 977068765 is about 992.2970722555.

The spelling of 977068765 in words is "nine hundred seventy-seven million, sixty-eight thousand, seven hundred sixty-five".