258660893 has 2 divisors, whose sum is σ = 258660894. Its totient is φ = 258660892.

The previous prime is 258660863. The next prime is 258660901. The reversal of 258660893 is 398066852.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185695129 + 72965764 = 13627^2 + 8542^2 .

It is a cyclic number.

It is not a de Polignac number, because 258660893 - 2¹⁴ = 258644509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258660823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129330446 + 129330447.

It is an arithmetic number, because the mean of its divisors is an integer number (129330447).

Almost surely, 2^258660893 is an apocalyptic number.

It is an amenable number.

258660893 is a deficient number, since it is larger than the sum of its proper divisors (1).

258660893 is an equidigital number, since it uses as much as digits as its factorization.

258660893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 258660893 is about 16082.9379467807. The cubic root of 258660893 is about 637.1527925027.

The spelling of 258660893 in words is "two hundred fifty-eight million, six hundred sixty thousand, eight hundred ninety-three".