677017720 has 32 divisors (see below), whose sum is σ = 1541650320. Its totient is φ = 267543040.

The previous prime is 677017697. The next prime is 677017721. The reversal of 677017720 is 27710776.

It is a self number, because there is not a number n which added to its sum of digits gives 677017720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677017721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98641 + ... + 105280.

Almost surely, 2^677017720 is an apocalyptic number.

It is an amenable number.

677017720 is an abundant number, since it is smaller than the sum of its proper divisors (864632600).

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

677017720 is a wasteful number, since it uses less digits than its factorization.

677017720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204015 (or 204011 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 677017720 is about 26019.5641777490. The cubic root of 677017720 is about 878.0785037120.

The spelling of 677017720 in words is "six hundred seventy-seven million, seventeen thousand, seven hundred twenty".