84481272 has 32 divisors (see below), whose sum is σ = 234670800. Its totient is φ = 28160352.

The previous prime is 84481261. The next prime is 84481273. The reversal of 84481272 is 27218448.

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 (84481273) 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 7 ways as a sum of consecutive naturals, for example, 195343 + ... + 195774.

Almost surely, 2^84481272 is an apocalyptic number.

It is an amenable number.

84481272 is an abundant number, since it is smaller than the sum of its proper divisors (150189528).

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

84481272 is a wasteful number, since it uses less digits than its factorization.

84481272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391132 (or 391122 counting only the distinct ones).

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

The square root of 84481272 is about 9191.3694300686. The cubic root of 84481272 is about 438.7867264165.

The spelling of 84481272 in words is "eighty-four million, four hundred eighty-one thousand, two hundred seventy-two".