258487958 has 12 divisors (see below), whose sum is σ = 411882252. Its totient is φ = 121641120.

The previous prime is 258487949. The next prime is 258487967. The reversal of 258487958 is 859784852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258487949) and next prime (258487967).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 223028 + ... + 224183.

It is an arithmetic number, because the mean of its divisors is an integer number (34323521).

Almost surely, 2^258487958 is an apocalyptic number.

258487958 is a deficient number, since it is larger than the sum of its proper divisors (153394294).

258487958 is a wasteful number, since it uses less digits than its factorization.

258487958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447247 (or 447230 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 56.

The square root of 258487958 is about 16077.5606980661. The cubic root of 258487958 is about 637.0107653850.

The spelling of 258487958 in words is "two hundred fifty-eight million, four hundred eighty-seven thousand, nine hundred fifty-eight".