258234863 has 2 divisors, whose sum is σ = 258234864. Its totient is φ = 258234862.

The previous prime is 258234797. The next prime is 258234901. The reversal of 258234863 is 368432852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258234863 - 2¹⁴ = 258218479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258234863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258233863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129117431 + 129117432.

It is an arithmetic number, because the mean of its divisors is an integer number (129117432).

Almost surely, 2^258234863 is an apocalyptic number.

258234863 is a deficient number, since it is larger than the sum of its proper divisors (1).

258234863 is an equidigital number, since it uses as much as digits as its factorization.

258234863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 41.

The square root of 258234863 is about 16069.6877069842. The cubic root of 258234863 is about 636.8027906567.

The spelling of 258234863 in words is "two hundred fifty-eight million, two hundred thirty-four thousand, eight hundred sixty-three".