679255699 has 4 divisors (see below), whose sum is σ = 680450040. Its totient is φ = 678061360.

The previous prime is 679255691. The next prime is 679255721. The reversal of 679255699 is 996552976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679255699 - 2³ = 679255691 is a prime.

It is a super-2 number, since 2×679255699² = 922776609247957202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679255691) 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, 596317 + ... + 597454.

It is an arithmetic number, because the mean of its divisors is an integer number (170112510).

Almost surely, 2^679255699 is an apocalyptic number.

679255699 is a deficient number, since it is larger than the sum of its proper divisors (1194341).

679255699 is a wasteful number, since it uses less digits than its factorization.

679255699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194340.

The product of its digits is 9185400, while the sum is 58.

The square root of 679255699 is about 26062.5343932627. The cubic root of 679255699 is about 879.0449776223.

The spelling of 679255699 in words is "six hundred seventy-nine million, two hundred fifty-five thousand, six hundred ninety-nine".