258117873 has 48 divisors (see below), whose sum is σ = 392370048. Its totient is φ = 149990400.

The previous prime is 258117859. The next prime is 258117911. The reversal of 258117873 is 378711852.

258117873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258117873 - 2⁹ = 258117361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (258117823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2660961 + ... + 2661057.

It is an arithmetic number, because the mean of its divisors is an integer number (8174376).

Almost surely, 2^258117873 is an apocalyptic number.

It is an amenable number.

258117873 is a deficient number, since it is larger than the sum of its proper divisors (134252175).

258117873 is a wasteful number, since it uses less digits than its factorization.

258117873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 215 counting only the distinct ones).

The product of its digits is 94080, while the sum is 42.

The square root of 258117873 is about 16066.0472114332. The cubic root of 258117873 is about 636.7066110126.

The spelling of 258117873 in words is "two hundred fifty-eight million, one hundred seventeen thousand, eight hundred seventy-three".