679317 has 8 divisors (see below), whose sum is σ = 909696. Its totient is φ = 450912.

The previous prime is 679309. The next prime is 679319. The reversal of 679317 is 713976.

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

It is not a de Polignac number, because 679317 - 2³ = 679309 is a prime.

It is a super-2 number, since 2×679317² = 922943172978, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

679317 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679317.

It is not an unprimeable number, because it can be changed into a prime (679319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (113712).

2⁶⁷⁹³¹⁷ is an apocalyptic number.

It is an amenable number.

679317 is a deficient number, since it is larger than the sum of its proper divisors (230379).

679317 is a wasteful number, since it uses less digits than its factorization.

679317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

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

The square root of 679317 is about 824.2068915024. The cubic root of 679317 is about 87.9071420642.

The spelling of 679317 in words is "six hundred seventy-nine thousand, three hundred seventeen".