258347217 has 8 divisors (see below), whose sum is σ = 344581920. Its totient is φ = 172172000.

The previous prime is 258347197. The next prime is 258347263. The reversal of 258347217 is 712743852.

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

It is a cyclic number.

It is not a de Polignac number, because 258347217 - 2⁸ = 258346961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258347717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492 + ... + 22997.

It is an arithmetic number, because the mean of its divisors is an integer number (43072740).

Almost surely, 2^258347217 is an apocalyptic number.

It is an amenable number.

258347217 is a deficient number, since it is larger than the sum of its proper divisors (86234703).

258347217 is a wasteful number, since it uses less digits than its factorization.

258347217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29743.

The product of its digits is 94080, while the sum is 39.

The square root of 258347217 is about 16073.1831632692. The cubic root of 258347217 is about 636.8951316185.

The spelling of 258347217 in words is "two hundred fifty-eight million, three hundred forty-seven thousand, two hundred seventeen".