84472272 has 120 divisors (see below), whose sum is σ = 247603200. Its totient is φ = 26853120.

The previous prime is 84472249. The next prime is 84472277. The reversal of 84472272 is 27227448.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84472277) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 566854 + ... + 567002.

It is an arithmetic number, because the mean of its divisors is an integer number (2063360).

Almost surely, 2^84472272 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 84472272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123801600).

84472272 is an abundant number, since it is smaller than the sum of its proper divisors (163130928).

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

84472272 is a wasteful number, since it uses less digits than its factorization.

84472272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 312 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 84472272 is about 9190.8798273071. The cubic root of 84472272 is about 438.7711441827.

The spelling of 84472272 in words is "eighty-four million, four hundred seventy-two thousand, two hundred seventy-two".