677906928 has 80 divisors (see below), whose sum is σ = 2048281600. Its totient is φ = 214073280.

The previous prime is 677906927. The next prime is 677906989. The reversal of 677906928 is 829609776.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677906927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33088 + ... + 49503.

It is an arithmetic number, because the mean of its divisors is an integer number (25603520).

Almost surely, 2^677906928 is an apocalyptic number.

It is an amenable number.

677906928 is an abundant number, since it is smaller than the sum of its proper divisors (1370374672).

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

677906928 is a wasteful number, since it uses less digits than its factorization.

677906928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82627 (or 82615 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 677906928 is about 26036.6458669315. The cubic root of 677906928 is about 878.4627638870.

The spelling of 677906928 in words is "six hundred seventy-seven million, nine hundred six thousand, nine hundred twenty-eight".