258887379 has 16 divisors (see below), whose sum is σ = 372614400. Its totient is φ = 159393696.

The previous prime is 258887359. The next prime is 258887399. The reversal of 258887379 is 973788852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258887359) and next prime (258887399).

It is not a de Polignac number, because 258887379 - 2²³ = 250498771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258887329) 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, 62689 + ... + 66690.

It is an arithmetic number, because the mean of its divisors is an integer number (23288400).

Almost surely, 2^258887379 is an apocalyptic number.

258887379 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

258887379 is a deficient number, since it is larger than the sum of its proper divisors (113727021).

258887379 is a wasteful number, since it uses less digits than its factorization.

258887379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129434.

The product of its digits is 6773760, while the sum is 57.

The square root of 258887379 is about 16089.9775947638. The cubic root of 258887379 is about 637.3387039839.

The spelling of 258887379 in words is "two hundred fifty-eight million, eight hundred eighty-seven thousand, three hundred seventy-nine".