822773 has 4 divisors (see below), whose sum is σ = 940320. Its totient is φ = 705228.

The previous prime is 822763. The next prime is 822781. The reversal of 822773 is 377228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 822773 - 2⁸ = 822517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58763 + ... + 58776.

It is an arithmetic number, because the mean of its divisors is an integer number (235080).

822773 is a Friedman number, since it can be written as 7^7-2-3*2^8, using all its digits and the basic arithmetic operations.

2⁸²²⁷⁷³ is an apocalyptic number.

It is an amenable number.

822773 is a deficient number, since it is larger than the sum of its proper divisors (117547).

822773 is a wasteful number, since it uses less digits than its factorization.

822773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117546.

The product of its digits is 4704, while the sum is 29.

The square root of 822773 is about 907.0683546459. The cubic root of 822773 is about 93.7044056811.

The spelling of 822773 in words is "eight hundred twenty-two thousand, seven hundred seventy-three".