678575944 has 32 divisors (see below), whose sum is σ = 1348466400. Its totient is φ = 319023360.

The previous prime is 678575921. The next prime is 678575971. The reversal of 678575944 is 449575876.

It is a super-2 number, since 2×678575944² = 920930623550982272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206587 + ... + 209845.

It is an arithmetic number, because the mean of its divisors is an integer number (42139575).

Almost surely, 2^678575944 is an apocalyptic number.

It is an amenable number.

678575944 is a deficient number, since it is larger than the sum of its proper divisors (669890456).

678575944 is a wasteful number, since it uses less digits than its factorization.

678575944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813 (or 4809 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The square root of 678575944 is about 26049.4902829211. The cubic root of 678575944 is about 878.7516493733.

It can be divided in two parts, 67 and 8575944, that added together give a triangular number (8576011 = T₄₁₄₁).

The spelling of 678575944 in words is "six hundred seventy-eight million, five hundred seventy-five thousand, nine hundred forty-four".