679725584 has 10 divisors (see below), whose sum is σ = 1316968350. Its totient is φ = 339862784.

The previous prime is 679725581. The next prime is 679725587. The reversal of 679725584 is 485527976.

It is an interprime number because it is at equal distance from previous prime (679725581) and next prime (679725587).

It can be written as a sum of positive squares in only one way, i.e., 539539984 + 140185600 = 23228^2 + 11840^2 .

It is not an unprimeable number, because it can be changed into a prime (679725581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21241409 + ... + 21241440.

It is an arithmetic number, because the mean of its divisors is an integer number (131696835).

Almost surely, 2^679725584 is an apocalyptic number.

It is an amenable number.

679725584 is a deficient number, since it is larger than the sum of its proper divisors (637242766).

679725584 is a wasteful number, since it uses less digits than its factorization.

679725584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42482857 (or 42482851 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 53.

The square root of 679725584 is about 26071.5474032517. The cubic root of 679725584 is about 879.2476282795.

The spelling of 679725584 in words is "six hundred seventy-nine million, seven hundred twenty-five thousand, five hundred eighty-four".