677731065 has 16 divisors (see below), whose sum is σ = 1182949056. Its totient is φ = 328596800.

The previous prime is 677731037. The next prime is 677731079. The reversal of 677731065 is 560137776.

It is not a de Polignac number, because 677731065 - 2⁶ = 677731001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053566 + ... + 2053895.

It is an arithmetic number, because the mean of its divisors is an integer number (73934316).

Almost surely, 2^677731065 is an apocalyptic number.

It is an amenable number.

677731065 is a deficient number, since it is larger than the sum of its proper divisors (505217991).

677731065 is a wasteful number, since it uses less digits than its factorization.

677731065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107480.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 677731065 is about 26033.2684271491. The cubic root of 677731065 is about 878.3867935476.

The spelling of 677731065 in words is "six hundred seventy-seven million, seven hundred thirty-one thousand, sixty-five".