84706812 has 36 divisors (see below), whose sum is σ = 216707400. Its totient is φ = 27894432.

The previous prime is 84706771. The next prime is 84706813. The reversal of 84706812 is 21860748.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84706813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11187 + ... + 17162.

It is an arithmetic number, because the mean of its divisors is an integer number (6019650).

Almost surely, 2^84706812 is an apocalyptic number.

It is an amenable number.

84706812 is an abundant number, since it is smaller than the sum of its proper divisors (132000588).

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

84706812 is a wasteful number, since it uses less digits than its factorization.

84706812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28442 (or 28437 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 84706812 is about 9203.6303706744. The cubic root of 84706812 is about 439.1768563556.

The spelling of 84706812 in words is "eighty-four million, seven hundred six thousand, eight hundred twelve".