679929380 has 24 divisors (see below), whose sum is σ = 1537687032. Its totient is φ = 251050752.

The previous prime is 679929359. The next prime is 679929403. The reversal of 679929380 is 83929976.

It can be written as a sum of positive squares in 4 ways, for example, as 4761124 + 675168256 = 2182^2 + 25984^2 .

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, 1307297 + ... + 1307816.

It is an arithmetic number, because the mean of its divisors is an integer number (64070293).

Almost surely, 2^679929380 is an apocalyptic number.

It is an amenable number.

679929380 is an abundant number, since it is smaller than the sum of its proper divisors (857757652).

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

679929380 is a wasteful number, since it uses less digits than its factorization.

679929380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615135 (or 2615133 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 679929380 is about 26075.4555089647. The cubic root of 679929380 is about 879.3354917982.

The spelling of 679929380 in words is "six hundred seventy-nine million, nine hundred twenty-nine thousand, three hundred eighty".