677077165 has 4 divisors (see below), whose sum is σ = 812492604. Its totient is φ = 541661728.

The previous prime is 677077127. The next prime is 677077187. The reversal of 677077165 is 561770776.

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 236329129 + 440748036 = 15373^2 + 20994^2 .

It is a cyclic number.

It is not a de Polignac number, because 677077165 - 2²⁷ = 542859437 is a prime.

It is a Duffinian number.

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, 67707712 + ... + 67707721.

It is an arithmetic number, because the mean of its divisors is an integer number (203123151).

Almost surely, 2^677077165 is an apocalyptic number.

It is an amenable number.

677077165 is a deficient number, since it is larger than the sum of its proper divisors (135415439).

677077165 is a wasteful number, since it uses less digits than its factorization.

677077165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135415438.

The product of its (nonzero) digits is 432180, while the sum is 46.

The square root of 677077165 is about 26020.7064661973. The cubic root of 677077165 is about 878.1042026204.

The spelling of 677077165 in words is "six hundred seventy-seven million, seventy-seven thousand, one hundred sixty-five".