84066012 has 120 divisors (see below), whose sum is σ = 237837600. Its totient is φ = 25812864.

The previous prime is 84065981. The next prime is 84066019. The reversal of 84066012 is 21066048.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84066019) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 215914 + ... + 216302.

It is an arithmetic number, because the mean of its divisors is an integer number (1981980).

Almost surely, 2^84066012 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 84066012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118918800).

84066012 is an abundant number, since it is smaller than the sum of its proper divisors (153771588).

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

84066012 is a wasteful number, since it uses less digits than its factorization.

84066012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 84066012 is about 9168.7519325151. The cubic root of 84066012 is about 438.0666064967.

The spelling of 84066012 in words is "eighty-four million, sixty-six thousand, twelve".