679716493 has 8 divisors (see below), whose sum is σ = 709632000. Its totient is φ = 649831248.

The previous prime is 679716487. The next prime is 679716497. The reversal of 679716493 is 394617976.

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

It is a cyclic number.

It is not a de Polignac number, because 679716493 - 2¹³ = 679708301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 679716493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679716497) by changing a digit.

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, 46708 + ... + 59506.

It is an arithmetic number, because the mean of its divisors is an integer number (88704000).

Almost surely, 2^679716493 is an apocalyptic number.

It is an amenable number.

679716493 is a deficient number, since it is larger than the sum of its proper divisors (29915507).

679716493 is a wasteful number, since it uses less digits than its factorization.

679716493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131.

The product of its digits is 1714608, while the sum is 52.

The square root of 679716493 is about 26071.3730555182. The cubic root of 679716493 is about 879.2437084252.

The spelling of 679716493 in words is "six hundred seventy-nine million, seven hundred sixteen thousand, four hundred ninety-three".