679131 has 8 divisors (see below), whose sum is σ = 1006160. Its totient is φ = 452736.

The previous prime is 679127. The next prime is 679153. The reversal of 679131 is 131976.

It is not a de Polignac number, because 679131 - 2² = 679127 is a prime.

It is a super-2 number, since 2×679131² = 922437830322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 25153 = 679131 / (6 + 7 + 9 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679095 and 679104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679111) 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, 12550 + ... + 12603.

It is an arithmetic number, because the mean of its divisors is an integer number (125770).

2⁶⁷⁹¹³¹ is an apocalyptic number.

679131 is a deficient number, since it is larger than the sum of its proper divisors (327029).

679131 is a wasteful number, since it uses less digits than its factorization.

679131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25162 (or 25156 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 679131 is about 824.0940480309. The cubic root of 679131 is about 87.8991182104.

The spelling of 679131 in words is "six hundred seventy-nine thousand, one hundred thirty-one".