84226728 has 32 divisors (see below), whose sum is σ = 212657760. Its totient is φ = 27796800.

The previous prime is 84226717. The next prime is 84226729. The reversal of 84226728 is 82762248.

It is not an unprimeable number, because it can be changed into a prime (84226729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14950 + ... + 19797.

It is an arithmetic number, because the mean of its divisors is an integer number (6645555).

Almost surely, 2^84226728 is an apocalyptic number.

It is an amenable number.

84226728 is an abundant number, since it is smaller than the sum of its proper divisors (128431032).

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

84226728 is a wasteful number, since it uses less digits than its factorization.

84226728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34857 (or 34853 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 84226728 is about 9177.5120811688. The cubic root of 84226728 is about 438.3455915971.

The spelling of 84226728 in words is "eighty-four million, two hundred twenty-six thousand, seven hundred twenty-eight".