259898 has 8 divisors (see below), whose sum is σ = 403380. Its totient is φ = 125440.

The previous prime is 259867. The next prime is 259907. The reversal of 259898 is 898952.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 253009 + 6889 = 503^2 + 83^2 .

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

It is a Curzon number.

It is an unprimeable number.

259898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183 + ... + 2298.

2²⁵⁹⁸⁹⁸ is an apocalyptic number.

259898 is a deficient number, since it is larger than the sum of its proper divisors (143482).

259898 is a wasteful number, since it uses less digits than its factorization.

259898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512.

The product of its digits is 51840, while the sum is 41.

The square root of 259898 is about 509.8019223189. The cubic root of 259898 is about 63.8166955451.

The spelling of 259898 in words is "two hundred fifty-nine thousand, eight hundred ninety-eight".