84271228 has 24 divisors (see below), whose sum is σ = 152748288. Its totient is φ = 40652976.

The previous prime is 84271223. The next prime is 84271259. The reversal of 84271228 is 82217248.

It is a junction number, because it is equal to n+sod(n) for n = 84271193 and 84271202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84271223) 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, 11325 + ... + 17227.

It is an arithmetic number, because the mean of its divisors is an integer number (6364512).

Almost surely, 2^84271228 is an apocalyptic number.

It is an amenable number.

84271228 is a deficient number, since it is larger than the sum of its proper divisors (68477060).

84271228 is a wasteful number, since it uses less digits than its factorization.

84271228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033 (or 6031 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 84271228 is about 9179.9361653554. The cubic root of 84271228 is about 438.4227759026.

The spelling of 84271228 in words is "eighty-four million, two hundred seventy-one thousand, two hundred twenty-eight".