82547984 has 10 divisors (see below), whose sum is σ = 159936750. Its totient is φ = 41273984.

The previous prime is 82547981. The next prime is 82548013. The reversal of 82547984 is 48974528.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66064384 + 16483600 = 8128^2 + 4060^2 .

It is not an unprimeable number, because it can be changed into a prime (82547981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2579609 + ... + 2579640.

It is an arithmetic number, because the mean of its divisors is an integer number (15993675).

Almost surely, 2^82547984 is an apocalyptic number.

It is an amenable number.

82547984 is a deficient number, since it is larger than the sum of its proper divisors (77388766).

82547984 is a wasteful number, since it uses less digits than its factorization.

82547984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159257 (or 5159251 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 82547984 is about 9085.5921105892. The cubic root of 82547984 is about 435.4137675756.

The spelling of 82547984 in words is "eighty-two million, five hundred forty-seven thousand, nine hundred eighty-four".