84189120 has 56 divisors (see below), whose sum is σ = 267303504. Its totient is φ = 22450176.

The previous prime is 84189107. The next prime is 84189121. The reversal of 84189120 is 2198148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84189121) 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, 42889 + ... + 44808.

Almost surely, 2^84189120 is an apocalyptic number.

84189120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84189120 is an abundant number, since it is smaller than the sum of its proper divisors (183114384).

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

84189120 is a wasteful number, since it uses less digits than its factorization.

84189120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87717 (or 87707 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 84189120 is about 9175.4629311005. The cubic root of 84189120 is about 438.2803401200.

The spelling of 84189120 in words is "eighty-four million, one hundred eighty-nine thousand, one hundred twenty".