677747438 has 8 divisors (see below), whose sum is σ = 1024626432. Its totient is φ = 336205296.

The previous prime is 677747419. The next prime is 677747453. The reversal of 677747438 is 834747776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 677747438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333895 + ... + 1334402.

It is an arithmetic number, because the mean of its divisors is an integer number (128078304).

Almost surely, 2^677747438 is an apocalyptic number.

677747438 is a deficient number, since it is larger than the sum of its proper divisors (346878994).

677747438 is a wasteful number, since it uses less digits than its factorization.

677747438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668426.

The product of its digits is 5531904, while the sum is 53.

The square root of 677747438 is about 26033.5828882618. The cubic root of 677747438 is about 878.3938670078.

The spelling of 677747438 in words is "six hundred seventy-seven million, seven hundred forty-seven thousand, four hundred thirty-eight".