822965 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 552000.

The previous prime is 822949. The next prime is 822971. The reversal of 822965 is 569228.

It is not a de Polignac number, because 822965 - 2⁴ = 822949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 140 + ... + 1290.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁸²²⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

822965 is a deficient number, since it is larger than the sum of its proper divisors (338251).

822965 is a wasteful number, since it uses less digits than its factorization.

822965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its digits is 8640, while the sum is 32.

The square root of 822965 is about 907.1741839360. The cubic root of 822965 is about 93.7116939800.

The spelling of 822965 in words is "eight hundred twenty-two thousand, nine hundred sixty-five".