258270797 has 2 divisors, whose sum is σ = 258270798. Its totient is φ = 258270796.

The previous prime is 258270769. The next prime is 258270869. The reversal of 258270797 is 797072852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178329316 + 79941481 = 13354^2 + 8941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258270797 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 (258270737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129135398 + 129135399.

It is an arithmetic number, because the mean of its divisors is an integer number (129135399).

Almost surely, 2^258270797 is an apocalyptic number.

It is an amenable number.

258270797 is a deficient number, since it is larger than the sum of its proper divisors (1).

258270797 is an equidigital number, since it uses as much as digits as its factorization.

258270797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 258270797 is about 16070.8057358678. The cubic root of 258270797 is about 636.8323268315.

The spelling of 258270797 in words is "two hundred fifty-eight million, two hundred seventy thousand, seven hundred ninety-seven".