822766 has 16 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 331776.

The previous prime is 822763. The next prime is 822781. The reversal of 822766 is 667228.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491 + ... + 1966.

It is an arithmetic number, because the mean of its divisors is an integer number (93366).

2⁸²²⁷⁶⁶ is an apocalyptic number.

822766 is a deficient number, since it is larger than the sum of its proper divisors (671090).

822766 is a wasteful number, since it uses less digits than its factorization.

822766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its digits is 8064, while the sum is 31.

The square root of 822766 is about 907.0644960531. The cubic root of 822766 is about 93.7041399405.

The spelling of 822766 in words is "eight hundred twenty-two thousand, seven hundred sixty-six".