84135228 has 24 divisors (see below), whose sum is σ = 196775040. Its totient is φ = 27979440.

The previous prime is 84135203. The next prime is 84135229. The reversal of 84135228 is 82253148.

It is a super-2 number, since 2×84135228² = 14157473181223968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84135229) 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, 2718 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (8198960).

Almost surely, 2^84135228 is an apocalyptic number.

It is an amenable number.

84135228 is an abundant number, since it is smaller than the sum of its proper divisors (112639812).

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

84135228 is a wasteful number, since it uses less digits than its factorization.

84135228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417 (or 16415 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 84135228 is about 9172.5257154178. The cubic root of 84135228 is about 438.1868013278.

The spelling of 84135228 in words is "eighty-four million, one hundred thirty-five thousand, two hundred twenty-eight".