679902244 has 18 divisors (see below), whose sum is σ = 1384087110. Its totient is φ = 291386592.

The previous prime is 679902191. The next prime is 679902263. The reversal of 679902244 is 442209976.

It can be written as a sum of positive squares in only one way, i.e., 523952100 + 155950144 = 22890^2 + 12488^2 .

It is a super-2 number, since 2×679902244² = 924534122792471072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679902244.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1734249 + ... + 1734640.

Almost surely, 2^679902244 is an apocalyptic number.

It is an amenable number.

679902244 is an abundant number, since it is smaller than the sum of its proper divisors (704184866).

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

679902244 is a wasteful number, since it uses less digits than its factorization.

679902244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468907 (or 3468898 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 679902244 is about 26074.9351677046. The cubic root of 679902244 is about 879.3237935415.

The spelling of 679902244 in words is "six hundred seventy-nine million, nine hundred two thousand, two hundred forty-four".