679931284 has 12 divisors (see below), whose sum is σ = 1195123104. Its totient is φ = 338467544.

The previous prime is 679931257. The next prime is 679931299. The reversal of 679931284 is 482139976.

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, 373504 + ... + 375319.

It is an arithmetic number, because the mean of its divisors is an integer number (99593592).

Almost surely, 2^679931284 is an apocalyptic number.

It is an amenable number.

679931284 is a deficient number, since it is larger than the sum of its proper divisors (515191820).

679931284 is a wasteful number, since it uses less digits than its factorization.

679931284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749054 (or 749052 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 679931284 is about 26075.4920183685. The cubic root of 679931284 is about 879.3363125958.

It can be divided in two parts, 6799 and 31284, that added together give a palindrome (38083).

The spelling of 679931284 in words is "six hundred seventy-nine million, nine hundred thirty-one thousand, two hundred eighty-four".