679605 has 8 divisors (see below), whose sum is σ = 1087392. Its totient is φ = 362448.

The previous prime is 679603. The next prime is 679607. The reversal of 679605 is 506976.

It is an interprime number because it is at equal distance from previous prime (679603) and next prime (679607).

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

It is not a de Polignac number, because 679605 - 2¹ = 679603 is a prime.

679605 is a lucky number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22639 + ... + 22668.

It is an arithmetic number, because the mean of its divisors is an integer number (135924).

2⁶⁷⁹⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

679605 is a deficient number, since it is larger than the sum of its proper divisors (407787).

679605 is a wasteful number, since it uses less digits than its factorization.

679605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45315.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 679605 is about 824.3815864028. The cubic root of 679605 is about 87.9195632068.

The spelling of 679605 in words is "six hundred seventy-nine thousand, six hundred five".