258834427 has 2 divisors, whose sum is σ = 258834428. Its totient is φ = 258834426.

The previous prime is 258834409. The next prime is 258834437. The reversal of 258834427 is 724438852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258834427 - 2²⁷ = 124616699 is a prime.

It is not a weakly prime, because it can be changed into another prime (258834437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129417213 + 129417214.

It is an arithmetic number, because the mean of its divisors is an integer number (129417214).

Almost surely, 2^258834427 is an apocalyptic number.

258834427 is a deficient number, since it is larger than the sum of its proper divisors (1).

258834427 is an equidigital number, since it uses as much as digits as its factorization.

258834427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 43.

The square root of 258834427 is about 16088.3320142270. The cubic root of 258834427 is about 637.2952479447.

The spelling of 258834427 in words is "two hundred fifty-eight million, eight hundred thirty-four thousand, four hundred twenty-seven".