258247 has 8 divisors (see below), whose sum is σ = 298512. Its totient is φ = 220800.

The previous prime is 258241. The next prime is 258253. The reversal of 258247 is 742852.

It is an interprime number because it is at equal distance from previous prime (258241) and next prime (258253).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258247 - 2⁷ = 258119 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (37314).

2²⁵⁸²⁴⁷ is an apocalyptic number.

258247 is a deficient number, since it is larger than the sum of its proper divisors (40265).

258247 is a wasteful number, since it uses less digits than its factorization.

258247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its digits is 4480, while the sum is 28.

The square root of 258247 is about 508.1800861899. The cubic root of 258247 is about 63.6812767046.

It can be divided in two parts, 258 and 247, that added together give a palindrome (505).

The spelling of 258247 in words is "two hundred fifty-eight thousand, two hundred forty-seven".