679497280 has 336 divisors, whose sum is σ = 2140427520. Its totient is φ = 200724480.

The previous prime is 679497251. The next prime is 679497281. The reversal of 679497280 is 82794976.

It is not an unprimeable number, because it can be changed into a prime (679497281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6233866 + ... + 6233974.

It is an arithmetic number, because the mean of its divisors is an integer number (6370320).

Almost surely, 2^679497280 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 679497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070213760).

679497280 is an abundant number, since it is smaller than the sum of its proper divisors (1460930240).

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

679497280 is a wasteful number, since it uses less digits than its factorization.

679497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 679497280 is about 26067.1686226180. The cubic root of 679497280 is about 879.1491776530.

The spelling of 679497280 in words is "six hundred seventy-nine million, four hundred ninety-seven thousand, two hundred eighty".