678056944 has 20 divisors (see below), whose sum is σ = 1317056824. Its totient is φ = 338171328.

The previous prime is 678056891. The next prime is 678056957. The reversal of 678056944 is 449650876.

It is a super-2 number, since 2×678056944² = 919522438613238272, which contains 22 as substring.

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, 47022 + ... + 59725.

Almost surely, 2^678056944 is an apocalyptic number.

It is an amenable number.

678056944 is a deficient number, since it is larger than the sum of its proper divisors (638999880).

678056944 is a wasteful number, since it uses less digits than its factorization.

678056944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107152 (or 107146 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 678056944 is about 26039.5265701971. The cubic root of 678056944 is about 878.5275583028.

The spelling of 678056944 in words is "six hundred seventy-eight million, fifty-six thousand, nine hundred forty-four".