235979 has 2 divisors, whose sum is σ = 235980. Its totient is φ = 235978.

The previous prime is 235967. The next prime is 235997. The reversal of 235979 is 979532.

Together with next prime (235997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235979 - 2⁸ = 235723 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (235919) 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 as a sum of consecutive naturals, namely, 117989 + 117990.

It is an arithmetic number, because the mean of its divisors is an integer number (117990).

2²³⁵⁹⁷⁹ is an apocalyptic number.

235979 is a deficient number, since it is larger than the sum of its proper divisors (1).

235979 is an equidigital number, since it uses as much as digits as its factorization.

235979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 35.

The square root of 235979 is about 485.7766976709. The cubic root of 235979 is about 61.7956330286.

The spelling of 235979 in words is "two hundred thirty-five thousand, nine hundred seventy-nine".