9722823 has 16 divisors (see below), whose sum is σ = 14526336. Its totient is φ = 5732640.

The previous prime is 9722821. The next prime is 9722833. The reversal of 9722823 is 3282279.

It is not a de Polignac number, because 9722823 - 2¹ = 9722821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

9722823 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2761 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (907896).

Almost surely, 2^9722823 is an apocalyptic number.

9722823 is a deficient number, since it is larger than the sum of its proper divisors (4803513).

9722823 is a wasteful number, since it uses less digits than its factorization.

9722823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014.

The product of its digits is 12096, while the sum is 33.

The square root of 9722823 is about 3118.1441595924. The cubic root of 9722823 is about 213.4342569893.

The spelling of 9722823 in words is "nine million, seven hundred twenty-two thousand, eight hundred twenty-three".