677839158 has 16 divisors (see below), whose sum is σ = 1506309360. Its totient is φ = 225946368.

The previous prime is 677839157. The next prime is 677839177. The reversal of 677839158 is 851938776.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 12552577 = 677839158 / (6 + 7 + 7 + 8 + 3 + 9 + 1 + 5 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677839157) 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, 6276235 + ... + 6276342.

It is an arithmetic number, because the mean of its divisors is an integer number (94144335).

Almost surely, 2^677839158 is an apocalyptic number.

677839158 is an abundant number, since it is smaller than the sum of its proper divisors (828470202).

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

677839158 is a wasteful number, since it uses less digits than its factorization.

677839158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12552588 (or 12552582 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 677839158 is about 26035.3443994889. The cubic root of 677839158 is about 878.4334897575.

The spelling of 677839158 in words is "six hundred seventy-seven million, eight hundred thirty-nine thousand, one hundred fifty-eight".