823628685 has 32 divisors (see below), whose sum is σ = 1451593728. Its totient is φ = 395449920.

The previous prime is 823628683. The next prime is 823628693. The reversal of 823628685 is 586826328.

823628685 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 823628685 - 2¹ = 823628683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823628683) 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, 7237 + ... + 41226.

It is an arithmetic number, because the mean of its divisors is an integer number (45362304).

Almost surely, 2^823628685 is an apocalyptic number.

It is an amenable number.

823628685 is a deficient number, since it is larger than the sum of its proper divisors (627965043).

823628685 is a wasteful number, since it uses less digits than its factorization.

823628685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48585.

The product of its digits is 1105920, while the sum is 48.

The square root of 823628685 is about 28698.9317745452. The cubic root of 823628685 is about 937.3687866139.

The spelling of 823628685 in words is "eight hundred twenty-three million, six hundred twenty-eight thousand, six hundred eighty-five".