677334564 has 18 divisors (see below), whose sum is σ = 1712151350. Its totient is φ = 225778176.

The previous prime is 677334563. The next prime is 677334569. The reversal of 677334564 is 465433776.

It can be written as a sum of positive squares in only one way, i.e., 553190400 + 124144164 = 23520^2 + 11142^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×677334564² = 917564223178140192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (677334563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9407389 + ... + 9407460.

Almost surely, 2^677334564 is an apocalyptic number.

It is an amenable number.

677334564 is an abundant number, since it is smaller than the sum of its proper divisors (1034816786).

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

677334564 is a wasteful number, since it uses less digits than its factorization.

677334564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18814859 (or 18814854 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The square root of 677334564 is about 26025.6520379413. The cubic root of 677334564 is about 878.2154624686.

It can be divided in two parts, 677 and 334564, that added together give a square (335241 = 579²).

The spelling of 677334564 in words is "six hundred seventy-seven million, three hundred thirty-four thousand, five hundred sixty-four".