679752684 has 72 divisors (see below), whose sum is σ = 1959310080. Its totient is φ = 196849152.

The previous prime is 679752659. The next prime is 679752709. The reversal of 679752684 is 486257976.

It is an interprime number because it is at equal distance from previous prime (679752659) and next prime (679752709).

It is a super-2 number, since 2×679752684² = 924127422810407712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679752684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34764 + ... + 50675.

It is an arithmetic number, because the mean of its divisors is an integer number (27212640).

Almost surely, 2^679752684 is an apocalyptic number.

It is an amenable number.

679752684 is an abundant number, since it is smaller than the sum of its proper divisors (1279557396).

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

679752684 is a wasteful number, since it uses less digits than its factorization.

679752684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85479 (or 85474 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 679752684 is about 26072.0671217301. The cubic root of 679752684 is about 879.2593130411.

The spelling of 679752684 in words is "six hundred seventy-nine million, seven hundred fifty-two thousand, six hundred eighty-four".