677732928 has 56 divisors (see below), whose sum is σ = 1799648928. Its totient is φ = 225094656.

The previous prime is 677732879. The next prime is 677732947. The reversal of 677732928 is 829237776.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48100 + ... + 60572.

It is an arithmetic number, because the mean of its divisors is an integer number (32136588).

Almost surely, 2^677732928 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 677732928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899824464).

677732928 is an abundant number, since it is smaller than the sum of its proper divisors (1121916000).

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

677732928 is a wasteful number, since it uses less digits than its factorization.

677732928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12771 (or 12761 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 51.

The square root of 677732928 is about 26033.3042082637. The cubic root of 677732928 is about 878.3875984062.

The spelling of 677732928 in words is "six hundred seventy-seven million, seven hundred thirty-two thousand, nine hundred twenty-eight".