82271439 has 6 divisors (see below), whose sum is σ = 118836536. Its totient is φ = 54847620.

The previous prime is 82271419. The next prime is 82271447. The reversal of 82271439 is 93417228.

It is not a de Polignac number, because 82271439 - 2¹⁵ = 82238671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82271419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4570627 + ... + 4570644.

Almost surely, 2^82271439 is an apocalyptic number.

82271439 is a deficient number, since it is larger than the sum of its proper divisors (36565097).

82271439 is a wasteful number, since it uses less digits than its factorization.

82271439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141277 (or 9141274 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 82271439 is about 9070.3604669274. The cubic root of 82271439 is about 434.9269952792.

The spelling of 82271439 in words is "eighty-two million, two hundred seventy-one thousand, four hundred thirty-nine".