679700394 has 24 divisors (see below), whose sum is σ = 1494667200. Its totient is φ = 223184808.

The previous prime is 679700381. The next prime is 679700449. The reversal of 679700394 is 493007976.

It is a super-4 number, since 4×679700394⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280594 + ... + 283005.

It is an arithmetic number, because the mean of its divisors is an integer number (62277800).

Almost surely, 2^679700394 is an apocalyptic number.

679700394 is an abundant number, since it is smaller than the sum of its proper divisors (814966806).

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

679700394 is a wasteful number, since it uses less digits than its factorization.

679700394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563674 (or 563671 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 679700394 is about 26071.0643050874. The cubic root of 679700394 is about 879.2367667780.

The spelling of 679700394 in words is "six hundred seventy-nine million, seven hundred thousand, three hundred ninety-four".