84065884 has 24 divisors (see below), whose sum is σ = 178022880. Its totient is φ = 33908736.

The previous prime is 84065881. The next prime is 84065911. The reversal of 84065884 is 48856048.

It is a self number, because there is not a number n which added to its sum of digits gives 84065884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84065881) 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 7 ways as a sum of consecutive naturals, for example, 87829 + ... + 88780.

It is an arithmetic number, because the mean of its divisors is an integer number (7417620).

Almost surely, 2^84065884 is an apocalyptic number.

It is an amenable number.

84065884 is an abundant number, since it is smaller than the sum of its proper divisors (93956996).

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

84065884 is a wasteful number, since it uses less digits than its factorization.

84065884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176637 (or 176635 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 84065884 is about 9168.7449522822. The cubic root of 84065884 is about 438.0663841613.

The spelling of 84065884 in words is "eighty-four million, sixty-five thousand, eight hundred eighty-four".