89882939621 has 2 divisors, whose sum is σ = 89882939622. Its totient is φ = 89882939620.

The previous prime is 89882939599. The next prime is 89882939623. The reversal of 89882939621 is 12693928898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88976327521 + 906612100 = 298289^2 + 30110^2 .

It is a cyclic number.

It is not a de Polignac number, because 89882939621 - 2⁶ = 89882939557 is a prime.

Together with 89882939623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89882939623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44941469810 + 44941469811.

It is an arithmetic number, because the mean of its divisors is an integer number (44941469811).

Almost surely, 2^89882939621 is an apocalyptic number.

It is an amenable number.

89882939621 is a deficient number, since it is larger than the sum of its proper divisors (1).

89882939621 is an equidigital number, since it uses as much as digits as its factorization.

89882939621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26873856, while the sum is 65.

The spelling of 89882939621 in words is "eighty-nine billion, eight hundred eighty-two million, nine hundred thirty-nine thousand, six hundred twenty-one".