677345648 has 20 divisors (see below), whose sum is σ = 1499837040. Its totient is φ = 290290944.

The previous prime is 677345639. The next prime is 677345651. The reversal of 677345648 is 846543776.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 677345596 and 677345605.

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, 3023753 + ... + 3023976.

It is an arithmetic number, because the mean of its divisors is an integer number (74991852).

Almost surely, 2^677345648 is an apocalyptic number.

It is an amenable number.

677345648 is an abundant number, since it is smaller than the sum of its proper divisors (822491392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677345648 is a wasteful number, since it uses less digits than its factorization.

677345648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047744 (or 6047738 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 50.

The square root of 677345648 is about 26025.8649808224. The cubic root of 677345648 is about 878.2202528571.

The spelling of 677345648 in words is "six hundred seventy-seven million, three hundred forty-five thousand, six hundred forty-eight".