30908089 has 2 divisors, whose sum is σ = 30908090. Its totient is φ = 30908088.

The previous prime is 30908081. The next prime is 30908167. The reversal of 30908089 is 98080903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30338064 + 570025 = 5508^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 30908089 - 2³ = 30908081 is a prime.

It is not a weakly prime, because it can be changed into another prime (30908081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15454044 + 15454045.

It is an arithmetic number, because the mean of its divisors is an integer number (15454045).

Almost surely, 2^30908089 is an apocalyptic number.

It is an amenable number.

30908089 is a deficient number, since it is larger than the sum of its proper divisors (1).

30908089 is an equidigital number, since it uses as much as digits as its factorization.

30908089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 30908089 is about 5559.5043843854. The cubic root of 30908089 is about 313.8272982987.

The spelling of 30908089 in words is "thirty million, nine hundred eight thousand, eighty-nine".