822725 has 6 divisors (see below), whose sum is σ = 1020210. Its totient is φ = 658160.

The previous prime is 822721. The next prime is 822727. The reversal of 822725 is 527228.

822725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 155236 + 667489 = 394^2 + 817^2 .

It is not a de Polignac number, because 822725 - 2² = 822721 is a prime.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 822694 and 822703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16430 + ... + 16479.

It is an arithmetic number, because the mean of its divisors is an integer number (170035).

2⁸²²⁷²⁵ is an apocalyptic number.

It is an amenable number.

822725 is a deficient number, since it is larger than the sum of its proper divisors (197485).

822725 is a wasteful number, since it uses less digits than its factorization.

822725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32919 (or 32914 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 822725 is about 907.0418953940. The cubic root of 822725 is about 93.7025834293.

The spelling of 822725 in words is "eight hundred twenty-two thousand, seven hundred twenty-five".