84589900 has 54 divisors (see below), whose sum is σ = 194141220. Its totient is φ = 31903200.

The previous prime is 84589891. The next prime is 84589903. The reversal of 84589900 is 998548.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84589903) 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 17 ways as a sum of consecutive naturals, for example, 400795 + ... + 401005.

Almost surely, 2^84589900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84589900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97070610).

84589900 is an abundant number, since it is smaller than the sum of its proper divisors (109551320).

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

84589900 is a wasteful number, since it uses less digits than its factorization.

84589900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 84589900 is about 9197.2767708708. The cubic root of 84589900 is about 438.9747132866.

The spelling of 84589900 in words is "eighty-four million, five hundred eighty-nine thousand, nine hundred".