679247593 has 2 divisors, whose sum is σ = 679247594. Its totient is φ = 679247592.

The previous prime is 679247581. The next prime is 679247623. The reversal of 679247593 is 395742976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392554969 + 286692624 = 19813^2 + 16932^2 .

It is a cyclic number.

It is not a de Polignac number, because 679247593 - 2²⁵ = 645693161 is a prime.

It is a super-2 number, since 2×679247593² = 922754585192587298, 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 679247593.

It is not a weakly prime, because it can be changed into another prime (679247893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339623796 + 339623797.

It is an arithmetic number, because the mean of its divisors is an integer number (339623797).

Almost surely, 2^679247593 is an apocalyptic number.

It is an amenable number.

679247593 is a deficient number, since it is larger than the sum of its proper divisors (1).

679247593 is an equidigital number, since it uses as much as digits as its factorization.

679247593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 52.

The square root of 679247593 is about 26062.3788822126. The cubic root of 679247593 is about 879.0414808700.

The spelling of 679247593 in words is "six hundred seventy-nine million, two hundred forty-seven thousand, five hundred ninety-three".