679881696 has 192 divisors, whose sum is σ = 2003678208. Its totient is φ = 200521728.

The previous prime is 679881691. The next prime is 679881757. The reversal of 679881696 is 696188976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679881691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3929866 + ... + 3930038.

It is an arithmetic number, because the mean of its divisors is an integer number (10435824).

Almost surely, 2^679881696 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 679881696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001839104).

679881696 is an abundant number, since it is smaller than the sum of its proper divisors (1323796512).

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

679881696 is a wasteful number, since it uses less digits than its factorization.

679881696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 305 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 679881696 is about 26074.5411464900. The cubic root of 679881696 is about 879.3149351468.

The spelling of 679881696 in words is "six hundred seventy-nine million, eight hundred eighty-one thousand, six hundred ninety-six".