258047999 has 8 divisors (see below), whose sum is σ = 290588160. Its totient is φ = 227021400.

The previous prime is 258047989. The next prime is 258048013. The reversal of 258047999 is 999740852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258047999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258047999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258047989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378029 + ... + 378710.

It is an arithmetic number, because the mean of its divisors is an integer number (36323520).

Almost surely, 2^258047999 is an apocalyptic number.

258047999 is a deficient number, since it is larger than the sum of its proper divisors (32540161).

258047999 is a wasteful number, since it uses less digits than its factorization.

258047999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756781.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 258047999 is about 16063.8724783285. The cubic root of 258047999 is about 636.6491524410.

The spelling of 258047999 in words is "two hundred fifty-eight million, forty-seven thousand, nine hundred ninety-nine".