677091880 has 32 divisors (see below), whose sum is σ = 1538549640. Its totient is φ = 268153600.

The previous prime is 677091869. The next prime is 677091893. The reversal of 677091880 is 88190776.

It can be written as a sum of positive squares in 4 ways, for example, as 606833956 + 70257924 = 24634^2 + 8382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 677091880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79759 + ... + 87838.

Almost surely, 2^677091880 is an apocalyptic number.

It is an amenable number.

677091880 is an abundant number, since it is smaller than the sum of its proper divisors (861457760).

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

677091880 is a wasteful number, since it uses less digits than its factorization.

677091880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167709 (or 167705 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 677091880 is about 26020.9892202430. The cubic root of 677091880 is about 878.1105638893.

The spelling of 677091880 in words is "six hundred seventy-seven million, ninety-one thousand, eight hundred eighty".