977165053 has 4 divisors (see below), whose sum is σ = 986129980. Its totient is φ = 968200128.

The previous prime is 977164999. The next prime is 977165071. The reversal of 977165053 is 350561779.

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 827885529 + 149279524 = 28773^2 + 12218^2 .

It is a cyclic number.

It is not a de Polignac number, because 977165053 - 2²¹ = 975067901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977165093) 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, 4482300 + ... + 4482517.

It is an arithmetic number, because the mean of its divisors is an integer number (246532495).

Almost surely, 2^977165053 is an apocalyptic number.

It is an amenable number.

977165053 is a deficient number, since it is larger than the sum of its proper divisors (8964927).

977165053 is a wasteful number, since it uses less digits than its factorization.

977165053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8964926.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 977165053 is about 31259.6393613234. The cubic root of 977165053 is about 992.3296674236.

The spelling of 977165053 in words is "nine hundred seventy-seven million, one hundred sixty-five thousand, fifty-three".