679372816 has 40 divisors (see below), whose sum is σ = 1388537120. Its totient is φ = 321117696.

The previous prime is 679372807. The next prime is 679372847. The reversal of 679372816 is 618273976.

It is a happy number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 679372816.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156856 + ... + 161128.

It is an arithmetic number, because the mean of its divisors is an integer number (34713428).

Almost surely, 2^679372816 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 679372816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694268560).

679372816 is an abundant number, since it is smaller than the sum of its proper divisors (709164304).

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

679372816 is a wasteful number, since it uses less digits than its factorization.

679372816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823 (or 4817 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 679372816 is about 26064.7811423768. The cubic root of 679372816 is about 879.0954962485.

The spelling of 679372816 in words is "six hundred seventy-nine million, three hundred seventy-two thousand, eight hundred sixteen".