82381984 has 12 divisors (see below), whose sum is σ = 162189594. Its totient is φ = 41190976.

The previous prime is 82381933. The next prime is 82382059. The reversal of 82381984 is 48918328.

It can be written as a sum of positive squares in only one way, i.e., 46621584 + 35760400 = 6828^2 + 5980^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82381984.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287187 + ... + 1287250.

Almost surely, 2^82381984 is an apocalyptic number.

It is an amenable number.

82381984 is a deficient number, since it is larger than the sum of its proper divisors (79807610).

82381984 is a wasteful number, since it uses less digits than its factorization.

82381984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574447 (or 2574439 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 82381984 is about 9076.4521703141. The cubic root of 82381984 is about 435.1217063777.

The spelling of 82381984 in words is "eighty-two million, three hundred eighty-one thousand, nine hundred eighty-four".