84484728 has 32 divisors (see below), whose sum is σ = 234680400. Its totient is φ = 28161504.

The previous prime is 84484721. The next prime is 84484759. The reversal of 84484728 is 82748448.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84484721) 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, 195351 + ... + 195782.

Almost surely, 2^84484728 is an apocalyptic number.

It is an amenable number.

84484728 is an abundant number, since it is smaller than the sum of its proper divisors (150195672).

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

84484728 is a wasteful number, since it uses less digits than its factorization.

84484728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391148 (or 391138 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 84484728 is about 9191.5574305990. The cubic root of 84484728 is about 438.7927097002.

The spelling of 84484728 in words is "eighty-four million, four hundred eighty-four thousand, seven hundred twenty-eight".