679279854 has 32 divisors (see below), whose sum is σ = 1488743424. Its totient is φ = 204914880.

The previous prime is 679279831. The next prime is 679279873. The reversal of 679279854 is 458972976.

It is a super-2 number, since 2×679279854² = 922842240100522632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679279794 and 679279803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8359 + ... + 37794.

It is an arithmetic number, because the mean of its divisors is an integer number (46523232).

Almost surely, 2^679279854 is an apocalyptic number.

679279854 is an abundant number, since it is smaller than the sum of its proper divisors (809463570).

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

679279854 is a wasteful number, since it uses less digits than its factorization.

679279854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46392.

The product of its digits is 7620480, while the sum is 57.

The square root of 679279854 is about 26062.9977938072. The cubic root of 679279854 is about 879.0553973998.

The spelling of 679279854 in words is "six hundred seventy-nine million, two hundred seventy-nine thousand, eight hundred fifty-four".