677043408 has 40 divisors (see below), whose sum is σ = 1778680800. Its totient is φ = 221855104.

The previous prime is 677043407. The next prime is 677043431. The reversal of 677043408 is 804340776.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677043407) 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, 116703 + ... + 122366.

It is an arithmetic number, because the mean of its divisors is an integer number (44467020).

Almost surely, 2^677043408 is an apocalyptic number.

It is an amenable number.

677043408 is an abundant number, since it is smaller than the sum of its proper divisors (1101637392).

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

677043408 is a wasteful number, since it uses less digits than its factorization.

677043408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239139 (or 239133 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 677043408 is about 26020.0578016268. The cubic root of 677043408 is about 878.0896091798.

The spelling of 677043408 in words is "six hundred seventy-seven million, forty-three thousand, four hundred eight".