258376417 has 4 divisors (see below), whose sum is σ = 278251540. Its totient is φ = 238501296.

The previous prime is 258376403. The next prime is 258376451. The reversal of 258376417 is 714673852.

258376417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70576801 + 187799616 = 8401^2 + 13704^2 .

It is a cyclic number.

It is not a de Polignac number, because 258376417 - 2¹⁵ = 258343649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258376477) 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, 9937542 + ... + 9937567.

It is an arithmetic number, because the mean of its divisors is an integer number (69562885).

Almost surely, 2^258376417 is an apocalyptic number.

It is an amenable number.

258376417 is a deficient number, since it is larger than the sum of its proper divisors (19875123).

258376417 is a wasteful number, since it uses less digits than its factorization.

258376417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19875122.

The product of its digits is 282240, while the sum is 43.

The square root of 258376417 is about 16074.0914828801. The cubic root of 258376417 is about 636.9191259899.

The spelling of 258376417 in words is "two hundred fifty-eight million, three hundred seventy-six thousand, four hundred seventeen".