823939328 has 72 divisors (see below), whose sum is σ = 1734620160. Its totient is φ = 390197760.

The previous prime is 823939283. The next prime is 823939339.

823939328 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 17530601 + ... + 17530647.

Almost surely, 2^823939328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823939328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867310080).

823939328 is an abundant number, since it is smaller than the sum of its proper divisors (910680832).

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

823939328 is an frugal number, since it uses more digits than its factorization.

823939328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 80 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 823939328 is about 28704.3433647244. The cubic root of 823939328 is about 937.4866190209.

The spelling of 823939328 in words is "eight hundred twenty-three million, nine hundred thirty-nine thousand, three hundred twenty-eight".