679479052 has 48 divisors (see below), whose sum is σ = 1452971520. Its totient is φ = 271395072.

The previous prime is 679478999. The next prime is 679479067. The reversal of 679479052 is 250974976.

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

It is a junction number, because it is equal to n+sod(n) for n = 679478987 and 679479005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42099 + ... + 55957.

It is an arithmetic number, because the mean of its divisors is an integer number (30270240).

Almost surely, 2^679479052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679479052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726485760).

679479052 is an abundant number, since it is smaller than the sum of its proper divisors (773492468).

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

679479052 is a wasteful number, since it uses less digits than its factorization.

679479052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13990 (or 13988 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 679479052 is about 26066.8189850622. The cubic root of 679479052 is about 879.1413163144.

The spelling of 679479052 in words is "six hundred seventy-nine million, four hundred seventy-nine thousand, fifty-two".