82417871 has 4 divisors (see below), whose sum is σ = 85076544. Its totient is φ = 79759200.

The previous prime is 82417861. The next prime is 82417873. The reversal of 82417871 is 17871428.

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 82417871 - 2¹⁸ = 82155727 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 (82417873) 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, 1329290 + ... + 1329351.

It is an arithmetic number, because the mean of its divisors is an integer number (21269136).

Almost surely, 2^82417871 is an apocalyptic number.

82417871 is a deficient number, since it is larger than the sum of its proper divisors (2658673).

82417871 is a wasteful number, since it uses less digits than its factorization.

82417871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658672.

The product of its digits is 25088, while the sum is 38.

The square root of 82417871 is about 9078.4288838984. The cubic root of 82417871 is about 435.1848793558.

The spelling of 82417871 in words is "eighty-two million, four hundred seventeen thousand, eight hundred seventy-one".