84647484 has 96 divisors (see below), whose sum is σ = 229447680. Its totient is φ = 26956800.

The previous prime is 84647483. The next prime is 84647531. The reversal of 84647484 is 48474648.

84647484 = 982² + 983² + ... + 1062².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84647483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438492 + ... + 438684.

It is an arithmetic number, because the mean of its divisors is an integer number (2390080).

Almost surely, 2^84647484 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 84647484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114723840).

84647484 is an abundant number, since it is smaller than the sum of its proper divisors (144800196).

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

84647484 is a wasteful number, since it uses less digits than its factorization.

84647484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 360 counting only the distinct ones).

The product of its digits is 688128, while the sum is 45.

The square root of 84647484 is about 9200.4067301397. The cubic root of 84647484 is about 439.0743003773.

The spelling of 84647484 in words is "eighty-four million, six hundred forty-seven thousand, four hundred eighty-four".