658979 has 2 divisors, whose sum is σ = 658980. Its totient is φ = 658978.

The previous prime is 658969. The next prime is 658991. The reversal of 658979 is 979856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 658979 - 2⁴ = 658963 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 658979.

It is not a weakly prime, because it can be changed into another prime (658919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329489 + 329490.

It is an arithmetic number, because the mean of its divisors is an integer number (329490).

2⁶⁵⁸⁹⁷⁹ is an apocalyptic number.

658979 is a deficient number, since it is larger than the sum of its proper divisors (1).

658979 is an equidigital number, since it uses as much as digits as its factorization.

658979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 658979 is about 811.7752151920. The cubic root of 658979 is about 87.0209576498.

It can be divided in two parts, 6 and 58979, that added together give a palindrome (58985).

The spelling of 658979 in words is "six hundred fifty-eight thousand, nine hundred seventy-nine".