259973 has 4 divisors (see below), whose sum is σ = 297120. Its totient is φ = 222828.

The previous prime is 259967. The next prime is 259991. The reversal of 259973 is 379952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 259973 - 2⁸ = 259717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259933) 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, 18563 + ... + 18576.

It is an arithmetic number, because the mean of its divisors is an integer number (74280).

2²⁵⁹⁹⁷³ is an apocalyptic number.

It is an amenable number.

259973 is a deficient number, since it is larger than the sum of its proper divisors (37147).

259973 is an equidigital number, since it uses as much as digits as its factorization.

259973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37146.

The product of its digits is 17010, while the sum is 35.

The square root of 259973 is about 509.8754749936. The cubic root of 259973 is about 63.8228335837.

The spelling of 259973 in words is "two hundred fifty-nine thousand, nine hundred seventy-three".