8809606639 has 16 divisors (see below), whose sum is σ = 9232492192. Its totient is φ = 8399075328.

The previous prime is 8809606613. The next prime is 8809606643. The reversal of 8809606639 is 9366069088.

It is a cyclic number.

It is not a de Polignac number, because 8809606639 - 2⁵ = 8809606607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8809606639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8809606699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290017 + ... + 318949.

It is an arithmetic number, because the mean of its divisors is an integer number (577030762).

Almost surely, 2^8809606639 is an apocalyptic number.

8809606639 is a deficient number, since it is larger than the sum of its proper divisors (422885553).

8809606639 is a wasteful number, since it uses less digits than its factorization.

8809606639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29146.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 8809606639 is about 93859.5047877411. The cubic root of 8809606639 is about 2065.3112260658.

The spelling of 8809606639 in words is "eight billion, eight hundred nine million, six hundred six thousand, six hundred thirty-nine".