823485 has 32 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 391680.

The previous prime is 823483. The next prime is 823489. The reversal of 823485 is 584328.

823485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 823485 - 2¹ = 823483 is a prime.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7944 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2⁸²³⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

823485 is a deficient number, since it is larger than the sum of its proper divisors (644163).

823485 is a wasteful number, since it uses less digits than its factorization.

823485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its digits is 7680, while the sum is 30.

The square root of 823485 is about 907.4607429526. The cubic root of 823485 is about 93.7314274320.

The spelling of 823485 in words is "eight hundred twenty-three thousand, four hundred eighty-five".