84281472 has 160 divisors (see below), whose sum is σ = 273992400. Its totient is φ = 25505280.

The previous prime is 84281429. The next prime is 84281479. The reversal of 84281472 is 27418248.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (84281479) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113679 + ... + 114417.

Almost surely, 2^84281472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84281472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136996200).

84281472 is an abundant number, since it is smaller than the sum of its proper divisors (189710928).

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

84281472 is a wasteful number, since it uses less digits than its factorization.

84281472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 755 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 84281472 is about 9180.4941043497. The cubic root of 84281472 is about 438.4405400555.

The spelling of 84281472 in words is "eighty-four million, two hundred eighty-one thousand, four hundred seventy-two".