89008109 has 2 divisors, whose sum is σ = 89008110. Its totient is φ = 89008108.

The previous prime is 89008079. The next prime is 89008111. The reversal of 89008109 is 90180098.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61936900 + 27071209 = 7870^2 + 5203^2 .

It is a cyclic number.

It is not a de Polignac number, because 89008109 - 2²⁰ = 87959533 is a prime.

Together with 89008111, 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 (89008159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44504054 + 44504055.

It is an arithmetic number, because the mean of its divisors is an integer number (44504055).

Almost surely, 2^89008109 is an apocalyptic number.

It is an amenable number.

89008109 is a deficient number, since it is larger than the sum of its proper divisors (1).

89008109 is an equidigital number, since it uses as much as digits as its factorization.

89008109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 89008109 is about 9434.4108984080. The cubic root of 89008109 is about 446.4880689287.

The spelling of 89008109 in words is "eighty-nine million, eight thousand, one hundred nine".