677377655 has 4 divisors (see below), whose sum is σ = 812853192. Its totient is φ = 541902120.

The previous prime is 677377637. The next prime is 677377661. The reversal of 677377655 is 556773776.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 677377655 - 2⁸ = 677377399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677377597 and 677377606.

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, 67737761 + ... + 67737770.

It is an arithmetic number, because the mean of its divisors is an integer number (203213298).

Almost surely, 2^677377655 is an apocalyptic number.

677377655 is a deficient number, since it is larger than the sum of its proper divisors (135475537).

677377655 is a wasteful number, since it uses less digits than its factorization.

677377655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135475536.

The product of its digits is 6482700, while the sum is 53.

The square root of 677377655 is about 26026.4798810750. The cubic root of 677377655 is about 878.2340856533.

The spelling of 677377655 in words is "six hundred seventy-seven million, three hundred seventy-seven thousand, six hundred fifty-five".