823912216 has 16 divisors (see below), whose sum is σ = 1547587800. Its totient is φ = 411222144.

The previous prime is 823912213. The next prime is 823912217. The reversal of 823912216 is 612219328.

823912216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823912213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86961 + ... + 95968.

Almost surely, 2^823912216 is an apocalyptic number.

It is an amenable number.

823912216 is a deficient number, since it is larger than the sum of its proper divisors (723675584).

823912216 is a wasteful number, since it uses less digits than its factorization.

823912216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183498 (or 183494 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 823912216 is about 28703.8710978154. The cubic root of 823912216 is about 937.4763361375.

The spelling of 823912216 in words is "eight hundred twenty-three million, nine hundred twelve thousand, two hundred sixteen".