859265 has 16 divisors (see below), whose sum is σ = 1192320. Its totient is φ = 587520.

The previous prime is 859259. The next prime is 859267. The reversal of 859265 is 562958.

859265 = 80² + 81² + ... + 145².

It is not a de Polignac number, because 859265 - 2⁴ = 859249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (74520).

2⁸⁵⁹²⁶⁵ is an apocalyptic number.

859265 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

859265 is a deficient number, since it is larger than the sum of its proper divisors (333055).

859265 is a wasteful number, since it uses less digits than its factorization.

859265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its digits is 21600, while the sum is 35.

The square root of 859265 is about 926.9654794004. The cubic root of 859265 is about 95.0697548633.

The spelling of 859265 in words is "eight hundred fifty-nine thousand, two hundred sixty-five".