858025 has 12 divisors (see below), whose sum is σ = 1216192. Its totient is φ = 588240.

The previous prime is 858001. The next prime is 858029. The reversal of 858025 is 520858.

It is not a de Polignac number, because 858025 - 2⁷ = 857897 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857984 and 858002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2277 + ... + 2626.

2⁸⁵⁸⁰²⁵ is an apocalyptic number.

It is an amenable number.

858025 is a deficient number, since it is larger than the sum of its proper divisors (358167).

858025 is a wasteful number, since it uses less digits than its factorization.

858025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920 (or 4915 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 858025 is about 926.2963888519. The cubic root of 858025 is about 95.0240013226.

The spelling of 858025 in words is "eight hundred fifty-eight thousand, twenty-five".