82107271 has 4 divisors (see below), whose sum is σ = 82537344. Its totient is φ = 81677200.

The previous prime is 82107257. The next prime is 82107317. The reversal of 82107271 is 17270128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82107271 - 2⁵ = 82107239 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 (82107241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214750 + ... + 215131.

It is an arithmetic number, because the mean of its divisors is an integer number (20634336).

Almost surely, 2^82107271 is an apocalyptic number.

82107271 is a deficient number, since it is larger than the sum of its proper divisors (430073).

82107271 is a wasteful number, since it uses less digits than its factorization.

82107271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430072.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 82107271 is about 9061.3062524120. The cubic root of 82107271 is about 434.6375119104.

Adding to 82107271 its reverse (17270128), we get a palindrome (99377399).

The spelling of 82107271 in words is "eighty-two million, one hundred seven thousand, two hundred seventy-one".