823479 has 8 divisors (see below), whose sum is σ = 1155840. Its totient is φ = 520056.

The previous prime is 823457. The next prime is 823481. The reversal of 823479 is 974328.

823479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 823479 - 2⁵ = 823447 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823489) 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, 7167 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (144480).

823479 is a Friedman number, since it can be written as (8*2-9)^7-4^3, using all its digits and the basic arithmetic operations.

2⁸²³⁴⁷⁹ is an apocalyptic number.

823479 is a deficient number, since it is larger than the sum of its proper divisors (332361).

823479 is a wasteful number, since it uses less digits than its factorization.

823479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14469.

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

The square root of 823479 is about 907.4574370184. The cubic root of 823479 is about 93.7311997857.

The spelling of 823479 in words is "eight hundred twenty-three thousand, four hundred seventy-nine".