677655678 has 16 divisors (see below), whose sum is σ = 1548927360. Its totient is φ = 193615896.

The previous prime is 677655661. The next prime is 677655679. The reversal of 677655678 is 876556776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677655679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8067288 + ... + 8067371.

It is an arithmetic number, because the mean of its divisors is an integer number (96807960).

Almost surely, 2^677655678 is an apocalyptic number.

677655678 is an abundant number, since it is smaller than the sum of its proper divisors (871271682).

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

677655678 is a wasteful number, since it uses less digits than its factorization.

677655678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16134671.

The product of its digits is 14817600, while the sum is 57.

The square root of 677655678 is about 26031.8204895470. The cubic root of 677655678 is about 878.3542234009.

The spelling of 677655678 in words is "six hundred seventy-seven million, six hundred fifty-five thousand, six hundred seventy-eight".