862225 has 24 divisors (see below), whose sum is σ = 1319360. Its totient is φ = 544320.

The previous prime is 862219. The next prime is 862229. The reversal of 862225 is 522268.

It is not a de Polignac number, because 862225 - 2⁷ = 862097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 862225.

It is not an unprimeable number, because it can be changed into a prime (862229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2086 + ... + 2464.

2⁸⁶²²²⁵ is an apocalyptic number.

It is an amenable number.

862225 is a deficient number, since it is larger than the sum of its proper divisors (457135).

862225 is a wasteful number, since it uses less digits than its factorization.

862225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 404 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 862225 is about 928.5607142239. The cubic root of 862225 is about 95.1787953267.

The spelling of 862225 in words is "eight hundred sixty-two thousand, two hundred twenty-five".