678358844 has 12 divisors (see below), whose sum is σ = 1187432064. Its totient is φ = 339092544.

The previous prime is 678358829. The next prime is 678358867. The reversal of 678358844 is 448853876.

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, 2204 + ... + 36899.

It is an arithmetic number, because the mean of its divisors is an integer number (98952672).

Almost surely, 2^678358844 is an apocalyptic number.

It is an amenable number.

678358844 is a deficient number, since it is larger than the sum of its proper divisors (509073220).

678358844 is a wasteful number, since it uses less digits than its factorization.

678358844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43444 (or 43442 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 53.

The square root of 678358844 is about 26045.3228814695. The cubic root of 678358844 is about 878.6579249918.

The spelling of 678358844 in words is "six hundred seventy-eight million, three hundred fifty-eight thousand, eight hundred forty-four".