258487967 has 2 divisors, whose sum is σ = 258487968. Its totient is φ = 258487966.

The previous prime is 258487949. The next prime is 258487981. The reversal of 258487967 is 769784852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258487967 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 (258487067) 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, 129243983 + 129243984.

It is an arithmetic number, because the mean of its divisors is an integer number (129243984).

Almost surely, 2^258487967 is an apocalyptic number.

258487967 is a deficient number, since it is larger than the sum of its proper divisors (1).

258487967 is an equidigital number, since it uses as much as digits as its factorization.

258487967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The square root of 258487967 is about 16077.5609779593. The cubic root of 258487967 is about 637.0107727781.

The spelling of 258487967 in words is "two hundred fifty-eight million, four hundred eighty-seven thousand, nine hundred sixty-seven".