860825 has 12 divisors (see below), whose sum is σ = 1220160. Its totient is φ = 590160.

The previous prime is 860819. The next prime is 860843. The reversal of 860825 is 528068.

860825 = T₁₆₀ + T₁₆₁ + ... + T₂₀₉.

It is a happy number.

It is not a de Polignac number, because 860825 - 2⁴ = 860809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2285 + ... + 2634.

It is an arithmetic number, because the mean of its divisors is an integer number (101680).

2⁸⁶⁰⁸²⁵ is an apocalyptic number.

It is an amenable number.

860825 is a deficient number, since it is larger than the sum of its proper divisors (359335).

860825 is a wasteful number, since it uses less digits than its factorization.

860825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4931 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 860825 is about 927.8065531133. The cubic root of 860825 is about 95.1272532898.

The spelling of 860825 in words is "eight hundred sixty thousand, eight hundred twenty-five".