823111264 has 12 divisors (see below), whose sum is σ = 1620500364. Its totient is φ = 411555616.

The previous prime is 823111259. The next prime is 823111283. The reversal of 823111264 is 462111328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861082 + ... + 12861145.

It is an arithmetic number, because the mean of its divisors is an integer number (135041697).

Almost surely, 2^823111264 is an apocalyptic number.

It is an amenable number.

823111264 is a deficient number, since it is larger than the sum of its proper divisors (797389100).

823111264 is a wasteful number, since it uses less digits than its factorization.

823111264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25722237 (or 25722229 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 823111264 is about 28689.9157196392. The cubic root of 823111264 is about 937.1724538470.

The spelling of 823111264 in words is "eight hundred twenty-three million, one hundred eleven thousand, two hundred sixty-four".