258490947 has 16 divisors (see below), whose sum is σ = 404909568. Its totient is φ = 144610080.

The previous prime is 258490919. The next prime is 258490979. The reversal of 258490947 is 749094852.

It is not a de Polignac number, because 258490947 - 2⁷ = 258490819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258490896 and 258490905.

It is not an unprimeable number, because it can be changed into a prime (258490247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300843 + ... + 301700.

It is an arithmetic number, because the mean of its divisors is an integer number (25306848).

Almost surely, 2^258490947 is an apocalyptic number.

258490947 is a deficient number, since it is larger than the sum of its proper divisors (146418621).

258490947 is a wasteful number, since it uses less digits than its factorization.

258490947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602570.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 258490947 is about 16077.6536534409. The cubic root of 258490947 is about 637.0132207126.

The spelling of 258490947 in words is "two hundred fifty-eight million, four hundred ninety thousand, nine hundred forty-seven".