677979072 has 70 divisors (see below), whose sum is σ = 2009757728. Its totient is φ = 225991296.

The previous prime is 677979059. The next prime is 677979149. The reversal of 677979072 is 270979776.

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

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 60208 + ... + 70575.

Almost surely, 2^677979072 is an apocalyptic number.

It is an amenable number.

677979072 is an abundant number, since it is smaller than the sum of its proper divisors (1331778656).

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

677979072 is a wasteful number, since it uses less digits than its factorization.

677979072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130807 (or 130788 counting only the distinct ones).

The product of its (nonzero) digits is 2333772, while the sum is 54.

The square root of 677979072 is about 26038.0312619829. The cubic root of 677979072 is about 878.4939252785.

The spelling of 677979072 in words is "six hundred seventy-seven million, nine hundred seventy-nine thousand, seventy-two".