84272190 has 16 divisors (see below), whose sum is σ = 202253328. Its totient is φ = 22472576.

The previous prime is 84272147. The next prime is 84272191. The reversal of 84272190 is 9127248.

It is a happy number.

It is a super-3 number, since 3×84272190³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84272191) 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 7 ways as a sum of consecutive naturals, for example, 1404507 + ... + 1404566.

It is an arithmetic number, because the mean of its divisors is an integer number (12640833).

Almost surely, 2^84272190 is an apocalyptic number.

84272190 is an abundant number, since it is smaller than the sum of its proper divisors (117981138).

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

84272190 is a wasteful number, since it uses less digits than its factorization.

84272190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809083.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 84272190 is about 9179.9885620844. The cubic root of 84272190 is about 438.4244441711.

The spelling of 84272190 in words is "eighty-four million, two hundred seventy-two thousand, one hundred ninety".