258270769 has 2 divisors, whose sum is σ = 258270770. Its totient is φ = 258270768.

The previous prime is 258270763. The next prime is 258270797. The reversal of 258270769 is 967072852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188046369 + 70224400 = 13713^2 + 8380^2 .

It is a cyclic number.

It is not a de Polignac number, because 258270769 - 2⁵ = 258270737 is a prime.

It is a super-2 number, since 2×258270769² = 133407580239702722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258270763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129135384 + 129135385.

It is an arithmetic number, because the mean of its divisors is an integer number (129135385).

Almost surely, 2^258270769 is an apocalyptic number.

It is an amenable number.

258270769 is a deficient number, since it is larger than the sum of its proper divisors (1).

258270769 is an equidigital number, since it uses as much as digits as its factorization.

258270769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 258270769 is about 16070.8048647229. The cubic root of 258270769 is about 636.8323038178.

The spelling of 258270769 in words is "two hundred fifty-eight million, two hundred seventy thousand, seven hundred sixty-nine".