823772 has 12 divisors (see below), whose sum is σ = 1477056. Its totient is φ = 401760.

The previous prime is 823759. The next prime is 823777. The reversal of 823772 is 277328.

823772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823777) by changing a digit.

823772 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (123088).

2⁸²³⁷⁷² is an apocalyptic number.

823772 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

823772 is a deficient number, since it is larger than the sum of its proper divisors (653284).

823772 is a wasteful number, since it uses less digits than its factorization.

823772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068 (or 5066 counting only the distinct ones).

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

The square root of 823772 is about 907.6188627392. The cubic root of 823772 is about 93.7423152219.

The spelling of 823772 in words is "eight hundred twenty-three thousand, seven hundred seventy-two".