8689905573 has 4 divisors (see below), whose sum is σ = 11586540768. Its totient is φ = 5793270380.

The previous prime is 8689905559. The next prime is 8689905629. The reversal of 8689905573 is 3755099868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8689905573 - 2⁶ = 8689905509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689905503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448317593 + ... + 1448317598.

It is an arithmetic number, because the mean of its divisors is an integer number (2896635192).

Almost surely, 2^8689905573 is an apocalyptic number.

It is an amenable number.

8689905573 is a deficient number, since it is larger than the sum of its proper divisors (2896635195).

8689905573 is a wasteful number, since it uses less digits than its factorization.

8689905573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896635194.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The square root of 8689905573 is about 93219.6630169837. The cubic root of 8689905573 is about 2055.9143558632.

The spelling of 8689905573 in words is "eight billion, six hundred eighty-nine million, nine hundred five thousand, five hundred seventy-three".