822625 has 8 divisors (see below), whose sum is σ = 1026792. Its totient is φ = 658000.

The previous prime is 822611. The next prime is 822631. The reversal of 822625 is 526228.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 725904 = 311^2 + 852^2 .

It is not a de Polignac number, because 822625 - 2⁹ = 822113 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a d-powerful number, because it can be written as 8³ + 2¹² + 6⁷ + 2¹⁴ + 2¹⁷ + 5⁸ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 822625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3166 + ... + 3415.

It is an arithmetic number, because the mean of its divisors is an integer number (128349).

2⁸²²⁶²⁵ is an apocalyptic number.

It is an amenable number.

822625 is a deficient number, since it is larger than the sum of its proper divisors (204167).

822625 is an equidigital number, since it uses as much as digits as its factorization.

822625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596 (or 6586 counting only the distinct ones).

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

The square root of 822625 is about 906.9867694735. The cubic root of 822625 is about 93.6987868435.

The spelling of 822625 in words is "eight hundred twenty-two thousand, six hundred twenty-five".