83221032989 has 2 divisors, whose sum is σ = 83221032990. Its totient is φ = 83221032988.

The previous prime is 83221032953. The next prime is 83221033003. The reversal of 83221032989 is 98923012238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82019232100 + 1201800889 = 286390^2 + 34667^2 .

It is a cyclic number.

It is not a de Polignac number, because 83221032989 - 2¹² = 83221028893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83221034989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41610516494 + 41610516495.

It is an arithmetic number, because the mean of its divisors is an integer number (41610516495).

Almost surely, 2^83221032989 is an apocalyptic number.

It is an amenable number.

83221032989 is a deficient number, since it is larger than the sum of its proper divisors (1).

83221032989 is an equidigital number, since it uses as much as digits as its factorization.

83221032989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 83221032989 in words is "eighty-three billion, two hundred twenty-one million, thirty-two thousand, nine hundred eighty-nine".