679713 has 4 divisors (see below), whose sum is σ = 906288. Its totient is φ = 453140.

The previous prime is 679709. The next prime is 679733. The reversal of 679713 is 317976.

679713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679713 - 2² = 679709 is a prime.

It is an Ulam number.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (679733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113283 + ... + 113288.

It is an arithmetic number, because the mean of its divisors is an integer number (226572).

2⁶⁷⁹⁷¹³ is an apocalyptic number.

It is an amenable number.

679713 is a deficient number, since it is larger than the sum of its proper divisors (226575).

679713 is a wasteful number, since it uses less digits than its factorization.

679713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226574.

The product of its digits is 7938, while the sum is 33.

The square root of 679713 is about 824.4470874471. The cubic root of 679713 is about 87.9242202305.

The spelling of 679713 in words is "six hundred seventy-nine thousand, seven hundred thirteen".