84420186 has 8 divisors (see below), whose sum is σ = 168840384. Its totient is φ = 28140060.

The previous prime is 84420109. The next prime is 84420187. The reversal of 84420186 is 68102448.

It is a sphenic number, since it is the product of 3 distinct primes.

84420186 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (84420187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7035010 + ... + 7035021.

It is an arithmetic number, because the mean of its divisors is an integer number (21105048).

Almost surely, 2^84420186 is an apocalyptic number.

84420186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

84420186 is a wasteful number, since it uses less digits than its factorization.

84420186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070036.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 84420186 is about 9188.0458205214. The cubic root of 84420186 is about 438.6809428573.

The spelling of 84420186 in words is "eighty-four million, four hundred twenty thousand, one hundred eighty-six".