677899872 has 72 divisors (see below), whose sum is σ = 2076079824. Its totient is φ = 208583424.

The previous prime is 677899819. The next prime is 677899877. The reversal of 677899872 is 278998776.

677899872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677899877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86788 + ... + 94275.

It is an arithmetic number, because the mean of its divisors is an integer number (28834442).

Almost surely, 2^677899872 is an apocalyptic number.

It is an amenable number.

677899872 is an abundant number, since it is smaller than the sum of its proper divisors (1398179952).

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

677899872 is a wasteful number, since it uses less digits than its factorization.

677899872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181092 (or 181081 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The square root of 677899872 is about 26036.5103652544. The cubic root of 677899872 is about 878.4597160473.

The spelling of 677899872 in words is "six hundred seventy-seven million, eight hundred ninety-nine thousand, eight hundred seventy-two".