84831212 has 24 divisors (see below), whose sum is σ = 151351200. Its totient is φ = 41596416.

The previous prime is 84831211. The next prime is 84831239. The reversal of 84831212 is 21213848.

It is not an unprimeable number, because it can be changed into a prime (84831211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43964 + ... + 45852.

It is an arithmetic number, because the mean of its divisors is an integer number (6306300).

Almost surely, 2^84831212 is an apocalyptic number.

It is an amenable number.

84831212 is a deficient number, since it is larger than the sum of its proper divisors (66519988).

84831212 is a wasteful number, since it uses less digits than its factorization.

84831212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105 (or 2103 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 84831212 is about 9210.3860939702. The cubic root of 84831212 is about 439.3917421740.

The spelling of 84831212 in words is "eighty-four million, eight hundred thirty-one thousand, two hundred twelve".