679998502 has 8 divisors (see below), whose sum is σ = 1023479856. Its totient is φ = 338838552.

The previous prime is 679998497. The next prime is 679998509. The reversal of 679998502 is 205899976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679998509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579618 + ... + 580789.

It is an arithmetic number, because the mean of its divisors is an integer number (127934982).

Almost surely, 2^679998502 is an apocalyptic number.

679998502 is a deficient number, since it is larger than the sum of its proper divisors (343481354).

679998502 is a wasteful number, since it uses less digits than its factorization.

679998502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160702.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 679998502 is about 26076.7808979559. The cubic root of 679998502 is about 879.3652887007.

The spelling of 679998502 in words is "six hundred seventy-nine million, nine hundred ninety-eight thousand, five hundred two".