258323839 has 2 divisors, whose sum is σ = 258323840. Its totient is φ = 258323838.

The previous prime is 258323831. The next prime is 258323873. The reversal of 258323839 is 938323852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258323839 - 2³ = 258323831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258323795 and 258323804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258323831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129161919 + 129161920.

It is an arithmetic number, because the mean of its divisors is an integer number (129161920).

Almost surely, 2^258323839 is an apocalyptic number.

258323839 is a deficient number, since it is larger than the sum of its proper divisors (1).

258323839 is an equidigital number, since it uses as much as digits as its factorization.

258323839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 258323839 is about 16072.4559106566. The cubic root of 258323839 is about 636.8759200271.

The spelling of 258323839 in words is "two hundred fifty-eight million, three hundred twenty-three thousand, eight hundred thirty-nine".