2108089 has 2 divisors, whose sum is σ = 2108090. Its totient is φ = 2108088.

The previous prime is 2108087. The next prime is 2108123. The reversal of 2108089 is 9808012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 1016064 = 1045^2 + 1008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2108089 - 2¹ = 2108087 is a prime.

Together with 2108087, it forms a pair of twin primes.

It is equal to p₁₅₆₃₇₆ and since 2108089 and 156376 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2108081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054044 + 1054045.

It is an arithmetic number, because the mean of its divisors is an integer number (1054045).

2^2108089 is an apocalyptic number.

It is an amenable number.

2108089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108089 is an equidigital number, since it uses as much as digits as its factorization.

2108089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2108089 is about 1451.9259622997. The cubic root of 2108089 is about 128.2221281358. Note that the first 3 decimals are identical.

The spelling of 2108089 in words is "two million, one hundred eight thousand, eighty-nine".