679613 has 8 divisors (see below), whose sum is σ = 765696. Its totient is φ = 597600.

The previous prime is 679607. The next prime is 679633. The reversal of 679613 is 316976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 679613 - 2⁴ = 679597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 679613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 656 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (95712).

2⁶⁷⁹⁶¹³ is an apocalyptic number.

It is an amenable number.

679613 is a deficient number, since it is larger than the sum of its proper divisors (86083).

679613 is a wasteful number, since it uses less digits than its factorization.

679613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035.

The product of its digits is 6804, while the sum is 32.

The square root of 679613 is about 824.3864385105. The cubic root of 679613 is about 87.9199081884.

The spelling of 679613 in words is "six hundred seventy-nine thousand, six hundred thirteen".