9113639 has 2 divisors, whose sum is σ = 9113640. Its totient is φ = 9113638.

The previous prime is 9113633. The next prime is 9113719. The reversal of 9113639 is 9363119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9113639 - 2⁸ = 9113383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9113633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4556819 + 4556820.

It is an arithmetic number, because the mean of its divisors is an integer number (4556820).

Almost surely, 2^9113639 is an apocalyptic number.

9113639 is a deficient number, since it is larger than the sum of its proper divisors (1).

9113639 is an equidigital number, since it uses as much as digits as its factorization.

9113639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 32.

The square root of 9113639 is about 3018.8804216133. The cubic root of 9113639 is about 208.8801996515.

The spelling of 9113639 in words is "nine million, one hundred thirteen thousand, six hundred thirty-nine".