84645228 has 24 divisors (see below), whose sum is σ = 207901120. Its totient is φ = 26730000.

The previous prime is 84645217. The next prime is 84645251. The reversal of 84645228 is 82254648.

It is an unprimeable number.

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, 185398 + ... + 185853.

Almost surely, 2^84645228 is an apocalyptic number.

It is an amenable number.

84645228 is an abundant number, since it is smaller than the sum of its proper divisors (123255892).

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

84645228 is a wasteful number, since it uses less digits than its factorization.

84645228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371277 (or 371275 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 84645228 is about 9200.2841260474. The cubic root of 84645228 is about 439.0703996493.

The spelling of 84645228 in words is "eighty-four million, six hundred forty-five thousand, two hundred twenty-eight".