823808 has 20 divisors (see below), whose sum is σ = 1647030. Its totient is φ = 411648.

The previous prime is 823799. The next prime is 823819. The reversal of 823808 is 808328.

It can be written as a sum of positive squares in only one way, i.e., 473344 + 350464 = 688^2 + 592^2 .

It is a nialpdrome in base 8 and base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293 + ... + 1316.

2⁸²³⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

823808 is a deficient number, since it is larger than the sum of its proper divisors (823222).

823808 is an equidigital number, since it uses as much as digits as its factorization.

823808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 823808 is about 907.6386946357. The cubic root of 823808 is about 93.7436807592.

The spelling of 823808 in words is "eight hundred twenty-three thousand, eight hundred eight".