258948439 has 4 divisors (see below), whose sum is σ = 259109224. Its totient is φ = 258787656.

The previous prime is 258948377. The next prime is 258948449. The reversal of 258948439 is 934849852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 258948439 - 2¹³ = 258940247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258948449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77952 + ... + 81205.

It is an arithmetic number, because the mean of its divisors is an integer number (64777306).

Almost surely, 2^258948439 is an apocalyptic number.

258948439 is a deficient number, since it is larger than the sum of its proper divisors (160785).

258948439 is a wasteful number, since it uses less digits than its factorization.

258948439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160784.

The product of its digits is 2488320, while the sum is 52.

The square root of 258948439 is about 16091.8749373713. The cubic root of 258948439 is about 637.3888066479.

The spelling of 258948439 in words is "two hundred fifty-eight million, nine hundred forty-eight thousand, four hundred thirty-nine".