89611633 has 2 divisors, whose sum is σ = 89611634. Its totient is φ = 89611632.

The previous prime is 89611631. The next prime is 89611651. The reversal of 89611633 is 33611698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47983329 + 41628304 = 6927^2 + 6452^2 .

It is a cyclic number.

It is not a de Polignac number, because 89611633 - 2¹ = 89611631 is a prime.

Together with 89611631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 89611592 and 89611601.

It is not a weakly prime, because it can be changed into another prime (89611631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44805816 + 44805817.

It is an arithmetic number, because the mean of its divisors is an integer number (44805817).

Almost surely, 2^89611633 is an apocalyptic number.

It is an amenable number.

89611633 is a deficient number, since it is larger than the sum of its proper divisors (1).

89611633 is an equidigital number, since it uses as much as digits as its factorization.

89611633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 89611633 is about 9466.3421129811. The cubic root of 89611633 is about 447.4949416321.

The spelling of 89611633 in words is "eighty-nine million, six hundred eleven thousand, six hundred thirty-three".