258898 has 4 divisors (see below), whose sum is σ = 388350. Its totient is φ = 129448.

The previous prime is 258887. The next prime is 258917. The reversal of 258898 is 898852.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 257049 + 1849 = 507^2 + 43^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 258898.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64723 + ... + 64726.

2²⁵⁸⁸⁹⁸ is an apocalyptic number.

258898 is a deficient number, since it is larger than the sum of its proper divisors (129452).

258898 is a wasteful number, since it uses less digits than its factorization.

258898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129451.

The product of its digits is 46080, while the sum is 40.

The square root of 258898 is about 508.8202040014. The cubic root of 258898 is about 63.7347419591.

It can be divided in two parts, 258 and 898, that added together give a square (1156 = 34²).

The spelling of 258898 in words is "two hundred fifty-eight thousand, eight hundred ninety-eight".