82271616 has 128 divisors (see below), whose sum is σ = 252764160. Its totient is φ = 23224320.

The previous prime is 82271597. The next prime is 82271639. The reversal of 82271616 is 61617228.

It is a tau number, because it is divible by the number of its divisors (128).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341256 + ... + 341496.

It is an arithmetic number, because the mean of its divisors is an integer number (1974720).

Almost surely, 2^82271616 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 82271616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126382080).

82271616 is an abundant number, since it is smaller than the sum of its proper divisors (170492544).

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

82271616 is a wasteful number, since it uses less digits than its factorization.

82271616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 380 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 82271616 is about 9070.3702239765. The cubic root of 82271616 is about 434.9273071818.

The spelling of 82271616 in words is "eighty-two million, two hundred seventy-one thousand, six hundred sixteen".