84189030 has 32 divisors (see below), whose sum is σ = 209023200. Its totient is φ = 21676032.

The previous prime is 84189029. The next prime is 84189037. The reversal of 84189030 is 3098148.

It is a junction number, because it is equal to n+sod(n) for n = 84188982 and 84189000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84189037) 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 15 ways as a sum of consecutive naturals, for example, 47515 + ... + 49254.

It is an arithmetic number, because the mean of its divisors is an integer number (6531975).

Almost surely, 2^84189030 is an apocalyptic number.

84189030 is an abundant number, since it is smaller than the sum of its proper divisors (124834170).

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

84189030 is a wasteful number, since it uses less digits than its factorization.

84189030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96808.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 84189030 is about 9175.4580267145. The cubic root of 84189030 is about 438.2801839429.

The spelling of 84189030 in words is "eighty-four million, one hundred eighty-nine thousand, thirty".