84484520 has 64 divisors (see below), whose sum is σ = 200154240. Its totient is φ = 32032000.

The previous prime is 84484513. The next prime is 84484529. The reversal of 84484520 is 2548448.

It is not an unprimeable number, because it can be changed into a prime (84484529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120170 + ... + 120870.

It is an arithmetic number, because the mean of its divisors is an integer number (3127410).

Almost surely, 2^84484520 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 84484520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100077120).

84484520 is an abundant number, since it is smaller than the sum of its proper divisors (115669720).

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

84484520 is a wasteful number, since it uses less digits than its factorization.

84484520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 84484520 is about 9191.5461158610. The cubic root of 84484520 is about 438.7923495998.

The spelling of 84484520 in words is "eighty-four million, four hundred eighty-four thousand, five hundred twenty".