258368087 has 2 divisors, whose sum is σ = 258368088. Its totient is φ = 258368086.

The previous prime is 258368083. The next prime is 258368093. The reversal of 258368087 is 780863852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258368087 - 2² = 258368083 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258368081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129184043 + 129184044.

It is an arithmetic number, because the mean of its divisors is an integer number (129184044).

Almost surely, 2^258368087 is an apocalyptic number.

258368087 is a deficient number, since it is larger than the sum of its proper divisors (1).

258368087 is an equidigital number, since it uses as much as digits as its factorization.

258368087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 258368087 is about 16073.8323681691. The cubic root of 258368087 is about 636.9122812046.

The spelling of 258368087 in words is "two hundred fifty-eight million, three hundred sixty-eight thousand, eighty-seven".