677117992 has 8 divisors (see below), whose sum is σ = 1269596250. Its totient is φ = 338558992.

The previous prime is 677117951. The next prime is 677118017. The reversal of 677117992 is 299711776.

It can be written as a sum of positive squares in only one way, i.e., 380796196 + 296321796 = 19514^2 + 17214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×677117992² = 916977550180224128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42319867 + ... + 42319882.

Almost surely, 2^677117992 is an apocalyptic number.

It is an amenable number.

677117992 is a deficient number, since it is larger than the sum of its proper divisors (592478258).

677117992 is a wasteful number, since it uses less digits than its factorization.

677117992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84639755 (or 84639751 counting only the distinct ones).

The product of its digits is 333396, while the sum is 49.

The square root of 677117992 is about 26021.4909642011. The cubic root of 677117992 is about 878.1218518346.

The spelling of 677117992 in words is "six hundred seventy-seven million, one hundred seventeen thousand, nine hundred ninety-two".