8809139 has 2 divisors, whose sum is σ = 8809140. Its totient is φ = 8809138.

The previous prime is 8809123. The next prime is 8809153. The reversal of 8809139 is 9319088.

8809139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8809139 - 2⁴ = 8809123 is a prime.

It is not a weakly prime, because it can be changed into another prime (8809159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4404569 + 4404570.

It is an arithmetic number, because the mean of its divisors is an integer number (4404570).

Almost surely, 2^8809139 is an apocalyptic number.

8809139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8809139 is an equidigital number, since it uses as much as digits as its factorization.

8809139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8809139 is about 2968.0193732521. The cubic root of 8809139 is about 206.5274681219.

The spelling of 8809139 in words is "eight million, eight hundred nine thousand, one hundred thirty-nine".