823303855 has 36 divisors (see below), whose sum is σ = 1113752808. Its totient is φ = 579421440.

The previous prime is 823303853. The next prime is 823303889. The reversal of 823303855 is 558303328.

It is not a de Polignac number, because 823303855 - 2¹ = 823303853 is a prime.

It is a super-2 number, since 2×823303855² = 1355658475315722050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823303853) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11278099 + ... + 11278171.

It is an arithmetic number, because the mean of its divisors is an integer number (30937578).

Almost surely, 2^823303855 is an apocalyptic number.

823303855 is a deficient number, since it is larger than the sum of its proper divisors (290448953).

823303855 is an equidigital number, since it uses as much as digits as its factorization.

823303855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 823303855 is about 28693.2719465731. The cubic root of 823303855 is about 937.2455411329.

The spelling of 823303855 in words is "eight hundred twenty-three million, three hundred three thousand, eight hundred fifty-five".