239708069 has 2 divisors, whose sum is σ = 239708070. Its totient is φ = 239708068.

The previous prime is 239708059. The next prime is 239708087. The reversal of 239708069 is 960807932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159390625 + 80317444 = 12625^2 + 8962^2 .

It is a cyclic number.

It is not a de Polignac number, because 239708069 - 2⁸ = 239707813 is a prime.

It is a super-2 number, since 2×239708069² = 114919916687417522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239708059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119854034 + 119854035.

It is an arithmetic number, because the mean of its divisors is an integer number (119854035).

Almost surely, 2^239708069 is an apocalyptic number.

It is an amenable number.

239708069 is a deficient number, since it is larger than the sum of its proper divisors (1).

239708069 is an equidigital number, since it uses as much as digits as its factorization.

239708069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 239708069 is about 15482.5084853844. The cubic root of 239708069 is about 621.1944274316.

The spelling of 239708069 in words is "two hundred thirty-nine million, seven hundred eight thousand, sixty-nine".