677968828 has 12 divisors (see below), whose sum is σ = 1186916472. Its totient is φ = 338849840.

The previous prime is 677968813. The next prime is 677968829. The reversal of 677968828 is 828869776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677968829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21850 + ... + 42817.

It is an arithmetic number, because the mean of its divisors is an integer number (98909706).

Almost surely, 2^677968828 is an apocalyptic number.

It is an amenable number.

677968828 is a deficient number, since it is larger than the sum of its proper divisors (508947644).

677968828 is a wasteful number, since it uses less digits than its factorization.

677968828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67292 (or 67290 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 61.

The square root of 677968828 is about 26037.8345489789. The cubic root of 677968828 is about 878.4895006891.

The spelling of 677968828 in words is "six hundred seventy-seven million, nine hundred sixty-eight thousand, eight hundred twenty-eight".