677888408 has 32 divisors (see below), whose sum is σ = 1322434560. Its totient is φ = 325412640.

The previous prime is 677888399. The next prime is 677888411. The reversal of 677888408 is 804888776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20735 + ... + 42257.

It is an arithmetic number, because the mean of its divisors is an integer number (41326080).

Almost surely, 2^677888408 is an apocalyptic number.

It is an amenable number.

677888408 is a deficient number, since it is larger than the sum of its proper divisors (644546152).

677888408 is a wasteful number, since it uses less digits than its factorization.

677888408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21687 (or 21683 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 56.

The square root of 677888408 is about 26036.2902119330. The cubic root of 677888408 is about 878.4547641268.

The spelling of 677888408 in words is "six hundred seventy-seven million, eight hundred eighty-eight thousand, four hundred eight".