8607139 has 2 divisors, whose sum is σ = 8607140. Its totient is φ = 8607138.

The previous prime is 8607103. The next prime is 8607163. The reversal of 8607139 is 9317068.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8607139 - 2²³ = 218531 is a prime.

It is not a weakly prime, because it can be changed into another prime (8607539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4303569 + 4303570.

It is an arithmetic number, because the mean of its divisors is an integer number (4303570).

Almost surely, 2^8607139 is an apocalyptic number.

8607139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8607139 is an equidigital number, since it uses as much as digits as its factorization.

8607139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 8607139 is about 2933.7925966230. The cubic root of 8607139 is about 204.9366371693.

The spelling of 8607139 in words is "eight million, six hundred seven thousand, one hundred thirty-nine".