823984212 has 12 divisors (see below), whose sum is σ = 1922629856. Its totient is φ = 274661400.

The previous prime is 823984211. The next prime is 823984277. The reversal of 823984212 is 212489328.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823984211) 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, 34332664 + ... + 34332687.

Almost surely, 2^823984212 is an apocalyptic number.

It is an amenable number.

823984212 is an abundant number, since it is smaller than the sum of its proper divisors (1098645644).

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

823984212 is a wasteful number, since it uses less digits than its factorization.

823984212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68665358 (or 68665356 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 823984212 is about 28705.1251869766. The cubic root of 823984212 is about 937.5036418703.

The spelling of 823984212 in words is "eight hundred twenty-three million, nine hundred eighty-four thousand, two hundred twelve".