868259 has 8 divisors (see below), whose sum is σ = 1006848. Its totient is φ = 733320.

The previous prime is 868249. The next prime is 868267. The reversal of 868259 is 952868.

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

It is a de Polignac number, because none of the positive numbers 2^k-868259 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (868229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 377 + ... + 1370.

It is an arithmetic number, because the mean of its divisors is an integer number (125856).

2⁸⁶⁸²⁵⁹ is an apocalyptic number.

868259 is a deficient number, since it is larger than the sum of its proper divisors (138589).

868259 is a wasteful number, since it uses less digits than its factorization.

868259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825.

The product of its digits is 34560, while the sum is 38.

The square root of 868259 is about 931.8041639744. The cubic root of 868259 is about 95.4003053081.

The spelling of 868259 in words is "eight hundred sixty-eight thousand, two hundred fifty-nine".