84684912 has 80 divisors (see below), whose sum is σ = 237880608. Its totient is φ = 25804800.

The previous prime is 84684907. The next prime is 84684913. The reversal of 84684912 is 21948648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84684913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69912 + ... + 71112.

Almost surely, 2^84684912 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 84684912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118940304).

84684912 is an abundant number, since it is smaller than the sum of its proper divisors (153195696).

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

84684912 is a wasteful number, since it uses less digits than its factorization.

84684912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1332 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 84684912 is about 9202.4405458552. The cubic root of 84684912 is about 439.1390050033.

It can be divided in two parts, 846 and 84912, that added together give a palindrome (85758).

The spelling of 84684912 in words is "eighty-four million, six hundred eighty-four thousand, nine hundred twelve".