677170020 has 48 divisors (see below), whose sum is σ = 1940178240. Its totient is φ = 176378496.

The previous prime is 677170019. The next prime is 677170049. The reversal of 677170020 is 20071776.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 677170020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128655 + ... + 133814.

It is an arithmetic number, because the mean of its divisors is an integer number (40420380).

Almost surely, 2^677170020 is an apocalyptic number.

677170020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677170020 is an abundant number, since it is smaller than the sum of its proper divisors (1263008220).

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

677170020 is a wasteful number, since it uses less digits than its factorization.

677170020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262524 (or 262522 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 677170020 is about 26022.4906571220. The cubic root of 677170020 is about 878.1443421313.

The spelling of 677170020 in words is "six hundred seventy-seven million, one hundred seventy thousand, twenty".