83271289 has 2 divisors, whose sum is σ = 83271290. Its totient is φ = 83271288.

The previous prime is 83271257. The next prime is 83271311. The reversal of 83271289 is 98217238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81812025 + 1459264 = 9045^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 83271289 - 2⁵ = 83271257 is a prime.

It is not a weakly prime, because it can be changed into another prime (83271229) 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 as a sum of consecutive naturals, namely, 41635644 + 41635645.

It is an arithmetic number, because the mean of its divisors is an integer number (41635645).

Almost surely, 2^83271289 is an apocalyptic number.

It is an amenable number.

83271289 is a deficient number, since it is larger than the sum of its proper divisors (1).

83271289 is an equidigital number, since it uses as much as digits as its factorization.

83271289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 83271289 is about 9125.3103508867. The cubic root of 83271289 is about 436.6818040191.

The spelling of 83271289 in words is "eighty-three million, two hundred seventy-one thousand, two hundred eighty-nine".