84415228 has 24 divisors (see below), whose sum is σ = 151767504. Its totient is φ = 41059200.

The previous prime is 84415211. The next prime is 84415283. The reversal of 84415228 is 82251448.

It is a junction number, because it is equal to n+sod(n) for n = 84415193 and 84415202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89238 + ... + 90178.

It is an arithmetic number, because the mean of its divisors is an integer number (6323646).

Almost surely, 2^84415228 is an apocalyptic number.

It is an amenable number.

84415228 is a deficient number, since it is larger than the sum of its proper divisors (67352276).

84415228 is a wasteful number, since it uses less digits than its factorization.

84415228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 84415228 is about 9187.7760094595. The cubic root of 84415228 is about 438.6723547743.

The spelling of 84415228 in words is "eighty-four million, four hundred fifteen thousand, two hundred twenty-eight".