679639498 has 16 divisors (see below), whose sum is σ = 1086311304. Its totient is φ = 317790720.

The previous prime is 679639483. The next prime is 679639537. The reversal of 679639498 is 894936976.

It can be written as a sum of positive squares in 4 ways, for example, as 677196529 + 2442969 = 26023^2 + 1563^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58323 + ... + 68998.

Almost surely, 2^679639498 is an apocalyptic number.

679639498 is a deficient number, since it is larger than the sum of its proper divisors (406671806).

679639498 is a wasteful number, since it uses less digits than its factorization.

679639498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127497.

The product of its digits is 17635968, while the sum is 61.

The square root of 679639498 is about 26069.8963941171. The cubic root of 679639498 is about 879.2105083453.

The spelling of 679639498 in words is "six hundred seventy-nine million, six hundred thirty-nine thousand, four hundred ninety-eight".