679679311 has 4 divisors (see below), whose sum is σ = 680594832. Its totient is φ = 678763792.

The previous prime is 679679303. The next prime is 679679321. The reversal of 679679311 is 113976976.

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 679679311 - 2³ = 679679303 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679679321) 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 3 ways as a sum of consecutive naturals, for example, 456646 + ... + 458131.

It is an arithmetic number, because the mean of its divisors is an integer number (170148708).

Almost surely, 2^679679311 is an apocalyptic number.

679679311 is a deficient number, since it is larger than the sum of its proper divisors (915521).

679679311 is an equidigital number, since it uses as much as digits as its factorization.

679679311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915520.

The product of its digits is 428652, while the sum is 49.

The square root of 679679311 is about 26070.6599647957. The cubic root of 679679311 is about 879.2276759391.

The spelling of 679679311 in words is "six hundred seventy-nine million, six hundred seventy-nine thousand, three hundred eleven".