679988514 has 16 divisors (see below), whose sum is σ = 1419106752. Its totient is φ = 216807888.

The previous prime is 679988497. The next prime is 679988521. The reversal of 679988514 is 415889976.

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, 2463589 + ... + 2463864.

It is an arithmetic number, because the mean of its divisors is an integer number (88694172).

Almost surely, 2^679988514 is an apocalyptic number.

679988514 is an abundant number, since it is smaller than the sum of its proper divisors (739118238).

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

679988514 is a wasteful number, since it uses less digits than its factorization.

679988514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927481.

The product of its digits is 4354560, while the sum is 57.

The square root of 679988514 is about 26076.5893858840. The cubic root of 679988514 is about 879.3609832287.

The spelling of 679988514 in words is "six hundred seventy-nine million, nine hundred eighty-eight thousand, five hundred fourteen".