89889633833 has 2 divisors, whose sum is σ = 89889633834. Its totient is φ = 89889633832.

The previous prime is 89889633811. The next prime is 89889633877. The reversal of 89889633833 is 33833698898.

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., 47896197904 + 41993435929 = 218852^2 + 204923^2 .

It is a cyclic number.

It is not a de Polignac number, because 89889633833 - 2³² = 85594666537 is a prime.

It is not a weakly prime, because it can be changed into another prime (89889633233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44944816916 + 44944816917.

It is an arithmetic number, because the mean of its divisors is an integer number (44944816917).

Almost surely, 2^89889633833 is an apocalyptic number.

It is an amenable number.

89889633833 is a deficient number, since it is larger than the sum of its proper divisors (1).

89889633833 is an equidigital number, since it uses as much as digits as its factorization.

89889633833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 68.

The spelling of 89889633833 in words is "eighty-nine billion, eight hundred eighty-nine million, six hundred thirty-three thousand, eight hundred thirty-three".