258803969 has 2 divisors, whose sum is σ = 258803970. Its totient is φ = 258803968.

The previous prime is 258803953. The next prime is 258804023. The reversal of 258803969 is 969308852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246866944 + 11937025 = 15712^2 + 3455^2 .

It is a cyclic number.

It is not a de Polignac number, because 258803969 - 2⁴ = 258803953 is a prime.

It is a super-2 number, since 2×258803969² = 133958988740305922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258803939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129401984 + 129401985.

It is an arithmetic number, because the mean of its divisors is an integer number (129401985).

Almost surely, 2^258803969 is an apocalyptic number.

It is an amenable number.

258803969 is a deficient number, since it is larger than the sum of its proper divisors (1).

258803969 is an equidigital number, since it uses as much as digits as its factorization.

258803969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 258803969 is about 16087.3853997472. The cubic root of 258803969 is about 637.2702493380.

The spelling of 258803969 in words is "two hundred fifty-eight million, eight hundred three thousand, nine hundred sixty-nine".