83271217 has 4 divisors (see below), whose sum is σ = 83312740. Its totient is φ = 83229696.

The previous prime is 83271211. The next prime is 83271229. The reversal of 83271217 is 71217238.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14447601 + 68823616 = 3801^2 + 8296^2 .

It is a cyclic number.

It is not a de Polignac number, because 83271217 - 2¹⁹ = 82746929 is a prime.

It is a super-3 number, since 3×83271217³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83271211) 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, 17592 + ... + 21817.

It is an arithmetic number, because the mean of its divisors is an integer number (20828185).

Almost surely, 2^83271217 is an apocalyptic number.

It is an amenable number.

83271217 is a deficient number, since it is larger than the sum of its proper divisors (41523).

83271217 is a wasteful number, since it uses less digits than its factorization.

83271217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41522.

The product of its digits is 4704, while the sum is 31.

The square root of 83271217 is about 9125.3064058145. The cubic root of 83271217 is about 436.6816781610.

The spelling of 83271217 in words is "eighty-three million, two hundred seventy-one thousand, two hundred seventeen".