676785564 has 96 divisors (see below), whose sum is σ = 2159575040. Its totient is φ = 178490304.

The previous prime is 676785553. The next prime is 676785601. The reversal of 676785564 is 465587676.

676785564 is a `hidden beast` number, since 6 + 7 + 6 + 78 + 5 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 676785564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24604 + ... + 44259.

Almost surely, 2^676785564 is an apocalyptic number.

It is an amenable number.

676785564 is an abundant number, since it is smaller than the sum of its proper divisors (1482789476).

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

676785564 is a wasteful number, since it uses less digits than its factorization.

676785564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68896 (or 68888 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The square root of 676785564 is about 26015.1026136742. The cubic root of 676785564 is about 877.9781250009.

The spelling of 676785564 in words is "six hundred seventy-six million, seven hundred eighty-five thousand, five hundred sixty-four".