677640567 has 8 divisors (see below), whose sum is σ = 951074560. Its totient is φ = 427983480.

The previous prime is 677640511. The next prime is 677640589. The reversal of 677640567 is 765046776.

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

It is not a de Polignac number, because 677640567 - 2²⁶ = 610531703 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 (677641567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5944159 + ... + 5944272.

It is an arithmetic number, because the mean of its divisors is an integer number (118884320).

Almost surely, 2^677640567 is an apocalyptic number.

677640567 is a deficient number, since it is larger than the sum of its proper divisors (273433993).

677640567 is a wasteful number, since it uses less digits than its factorization.

677640567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11888453.

The product of its (nonzero) digits is 1481760, while the sum is 48.

The square root of 677640567 is about 26031.5302469909. The cubic root of 677640567 is about 878.3476945644.

The spelling of 677640567 in words is "six hundred seventy-seven million, six hundred forty thousand, five hundred sixty-seven".