679293713 has 12 divisors (see below), whose sum is σ = 791280612. Its totient is φ = 581454720.

The previous prime is 679293683. The next prime is 679293733. The reversal of 679293713 is 317392976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49885969 + 629407744 = 7063^2 + 25088^2 .

It is not a de Polignac number, because 679293713 - 2⁶ = 679293649 is a prime.

It is a super-2 number, since 2×679293713² = 922879897042652738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679293733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28181 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (65940051).

Almost surely, 2^679293713 is an apocalyptic number.

It is an amenable number.

679293713 is a deficient number, since it is larger than the sum of its proper divisors (111986899).

679293713 is a wasteful number, since it uses less digits than its factorization.

679293713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992 (or 18985 counting only the distinct ones).

The product of its digits is 428652, while the sum is 47.

The square root of 679293713 is about 26063.2636674688. The cubic root of 679293713 is about 879.0613756653.

The spelling of 679293713 in words is "six hundred seventy-nine million, two hundred ninety-three thousand, seven hundred thirteen".