83889329 has 2 divisors, whose sum is σ = 83889330. Its totient is φ = 83889328.

The previous prime is 83889319. The next prime is 83889367. The reversal of 83889329 is 92398838.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59367025 + 24522304 = 7705^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 83889329 - 2²⁰ = 82840753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83889319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41944664 + 41944665.

It is an arithmetic number, because the mean of its divisors is an integer number (41944665).

Almost surely, 2^83889329 is an apocalyptic number.

It is an amenable number.

83889329 is a deficient number, since it is larger than the sum of its proper divisors (1).

83889329 is an equidigital number, since it uses as much as digits as its factorization.

83889329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 83889329 is about 9159.1118019162. Note that the first 3 decimals coincide. The cubic root of 83889329 is about 437.7594938386.

The spelling of 83889329 in words is "eighty-three million, eight hundred eighty-nine thousand, three hundred twenty-nine".