679967 has 8 divisors (see below), whose sum is σ = 705312. Its totient is φ = 655200.

The previous prime is 679961. The next prime is 679969. The reversal of 679967 is 769976.

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 679967 - 2⁴ = 679951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679961) 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, 4253 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (88164).

2⁶⁷⁹⁹⁶⁷ is an apocalyptic number.

679967 is a deficient number, since it is larger than the sum of its proper divisors (25345).

679967 is a wasteful number, since it uses less digits than its factorization.

679967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its digits is 142884, while the sum is 44.

The square root of 679967 is about 824.6011156917. The cubic root of 679967 is about 87.9351709164.

Subtracting 679967 from its reverse (769976), we obtain a palindrome (90009).

The spelling of 679967 in words is "six hundred seventy-nine thousand, nine hundred sixty-seven".