677890764 has 72 divisors (see below), whose sum is σ = 1816750208. Its totient is φ = 212751360.

The previous prime is 677890739. The next prime is 677890777. The reversal of 677890764 is 467098776.

677890764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 677890764.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33084 + ... + 49500.

Almost surely, 2^677890764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677890764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908375104).

677890764 is an abundant number, since it is smaller than the sum of its proper divisors (1138859444).

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

677890764 is a wasteful number, since it uses less digits than its factorization.

677890764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16495 (or 16490 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 677890764 is about 26036.3354564347. The cubic root of 677890764 is about 878.4557818149.

The spelling of 677890764 in words is "six hundred seventy-seven million, eight hundred ninety thousand, seven hundred sixty-four".