679998744 has 48 divisors (see below), whose sum is σ = 1857983400. Its totient is φ = 224657664.

The previous prime is 679998743. The next prime is 679998751. The reversal of 679998744 is 447899976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679998743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33654 + ... + 49925.

Almost surely, 2^679998744 is an apocalyptic number.

It is an amenable number.

679998744 is an abundant number, since it is smaller than the sum of its proper divisors (1177984656).

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

679998744 is a wasteful number, since it uses less digits than its factorization.

679998744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83704 (or 83697 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 679998744 is about 26076.7855380988. The cubic root of 679998744 is about 879.3653930178.

The spelling of 679998744 in words is "six hundred seventy-nine million, nine hundred ninety-eight thousand, seven hundred forty-four".