89916811 has 2 divisors, whose sum is σ = 89916812. Its totient is φ = 89916810.

The previous prime is 89916809. The next prime is 89916817. The reversal of 89916811 is 11861998.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89916811 - 2¹ = 89916809 is a prime.

Together with 89916809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89916817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44958405 + 44958406.

It is an arithmetic number, because the mean of its divisors is an integer number (44958406).

Almost surely, 2^89916811 is an apocalyptic number.

89916811 is a deficient number, since it is larger than the sum of its proper divisors (1).

89916811 is an equidigital number, since it uses as much as digits as its factorization.

89916811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 43.

The square root of 89916811 is about 9482.4475216054. The cubic root of 89916811 is about 448.0023566920.

The spelling of 89916811 in words is "eighty-nine million, nine hundred sixteen thousand, eight hundred eleven".