823311852 has 24 divisors (see below), whose sum is σ = 2095703232. Its totient is φ = 249488400.

The previous prime is 823311823. The next prime is 823311869. The reversal of 823311852 is 258113328.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3118474 + ... + 3118737.

It is an arithmetic number, because the mean of its divisors is an integer number (87320968).

Almost surely, 2^823311852 is an apocalyptic number.

It is an amenable number.

823311852 is an abundant number, since it is smaller than the sum of its proper divisors (1272391380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823311852 is a wasteful number, since it uses less digits than its factorization.

823311852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237229 (or 6237227 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 823311852 is about 28693.4112994604. The cubic root of 823311852 is about 937.2485757065.

The spelling of 823311852 in words is "eight hundred twenty-three million, three hundred eleven thousand, eight hundred fifty-two".