258295867 has 2 divisors, whose sum is σ = 258295868. Its totient is φ = 258295866.

The previous prime is 258295783. The next prime is 258295897. The reversal of 258295867 is 768592852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258295867 - 2²⁷ = 124078139 is a prime.

It is not a weakly prime, because it can be changed into another prime (258295897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129147933 + 129147934.

It is an arithmetic number, because the mean of its divisors is an integer number (129147934).

Almost surely, 2^258295867 is an apocalyptic number.

258295867 is a deficient number, since it is larger than the sum of its proper divisors (1).

258295867 is an equidigital number, since it uses as much as digits as its factorization.

258295867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The square root of 258295867 is about 16071.5857027239. The cubic root of 258295867 is about 636.8529316516.

The spelling of 258295867 in words is "two hundred fifty-eight million, two hundred ninety-five thousand, eight hundred sixty-seven".