822723 has 16 divisors (see below), whose sum is σ = 1213056. Its totient is φ = 491840.

The previous prime is 822721. The next prime is 822727. The reversal of 822723 is 327228.

822723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 822723 - 2¹ = 822721 is a prime.

822723 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 822693 and 822702.

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 15 ways as a sum of consecutive naturals, for example, 3415 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2⁸²²⁷²³ is an apocalyptic number.

822723 is a deficient number, since it is larger than the sum of its proper divisors (390333).

822723 is a wasteful number, since it uses less digits than its factorization.

822723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its digits is 1344, while the sum is 24.

The square root of 822723 is about 907.0407929085. The cubic root of 822723 is about 93.7025075006.

The spelling of 822723 in words is "eight hundred twenty-two thousand, seven hundred twenty-three".