866025 has 24 divisors (see below), whose sum is σ = 1592160. Its totient is φ = 461520.

The previous prime is 866011. The next prime is 866029. The reversal of 866025 is 520668.

It is not a de Polignac number, because 866025 - 2⁴ = 866009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 866025.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 866025.

It is not an unprimeable number, because it can be changed into a prime (866029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (66340).

2⁸⁶⁶⁰²⁵ is an apocalyptic number.

It is an amenable number.

866025 is a deficient number, since it is larger than the sum of its proper divisors (726135).

866025 is a wasteful number, since it uses less digits than its factorization.

866025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 866025 is about 930.6046421548. The cubic root of 866025 is about 95.3184144856.

The spelling of 866025 in words is "eight hundred sixty-six thousand, twenty-five".