679331 has 4 divisors (see below), whose sum is σ = 681792. Its totient is φ = 676872.

The previous prime is 679319. The next prime is 679333. The reversal of 679331 is 133976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679331 - 2¹⁴ = 662947 is a prime.

It is a super-2 number, since 2×679331² = 922981215122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679294 and 679303.

It is not an unprimeable number, because it can be changed into a prime (679333) 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 3 ways as a sum of consecutive naturals, for example, 755 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (170448).

2⁶⁷⁹³³¹ is an apocalyptic number.

679331 is a deficient number, since it is larger than the sum of its proper divisors (2461).

679331 is a wasteful number, since it uses less digits than its factorization.

679331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460.

The product of its digits is 3402, while the sum is 29.

The square root of 679331 is about 824.2153844718. The cubic root of 679331 is about 87.9077459509.

The spelling of 679331 in words is "six hundred seventy-nine thousand, three hundred thirty-one".