679907859 has 8 divisors (see below), whose sum is σ = 906850560. Its totient is φ = 453118536.

The previous prime is 679907827. The next prime is 679907867. The reversal of 679907859 is 958709976.

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

It is not a de Polignac number, because 679907859 - 2⁵ = 679907827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679907869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27567 + ... + 46040.

It is an arithmetic number, because the mean of its divisors is an integer number (113356320).

Almost surely, 2^679907859 is an apocalyptic number.

679907859 is a deficient number, since it is larger than the sum of its proper divisors (226942701).

679907859 is a wasteful number, since it uses less digits than its factorization.

679907859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76689.

The product of its (nonzero) digits is 8573040, while the sum is 60.

The square root of 679907859 is about 26075.0428379322. The cubic root of 679907859 is about 879.3262141784.

It can be divided in two parts, 67 and 9907859, that added together give a triangular number (9907926 = T₄₄₅₁).

The spelling of 679907859 in words is "six hundred seventy-nine million, nine hundred seven thousand, eight hundred fifty-nine".