82686271 has 8 divisors (see below), whose sum is σ = 87726080. Its totient is φ = 77715288.

The previous prime is 82686259. The next prime is 82686313. The reversal of 82686271 is 17268628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82686271 - 2²⁵ = 49131839 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 (82686211) 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 7 ways as a sum of consecutive naturals, for example, 14721 + ... + 19546.

It is an arithmetic number, because the mean of its divisors is an integer number (10965760).

Almost surely, 2^82686271 is an apocalyptic number.

82686271 is a deficient number, since it is larger than the sum of its proper divisors (5039809).

82686271 is a wasteful number, since it uses less digits than its factorization.

82686271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34413.

The product of its digits is 64512, while the sum is 40.

The square root of 82686271 is about 9093.1991620111. The cubic root of 82686271 is about 435.6567715795.

It can be divided in two parts, 8268627 and 1, that added together give a palindrome (8268628).

The spelling of 82686271 in words is "eighty-two million, six hundred eighty-six thousand, two hundred seventy-one".