84821084 has 24 divisors (see below), whose sum is σ = 154374528. Its totient is φ = 40734720.

The previous prime is 84821071. The next prime is 84821089. The reversal of 84821084 is 48012848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84821089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14492 + ... + 19484.

It is an arithmetic number, because the mean of its divisors is an integer number (6432272).

Almost surely, 2^84821084 is an apocalyptic number.

It is an amenable number.

84821084 is a deficient number, since it is larger than the sum of its proper divisors (69553444).

84821084 is a wasteful number, since it uses less digits than its factorization.

84821084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165 (or 5163 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 84821084 is about 9209.8362634740. The cubic root of 84821084 is about 439.3742551485.

The spelling of 84821084 in words is "eighty-four million, eight hundred twenty-one thousand, eighty-four".