9889009694 has 8 divisors (see below), whose sum is σ = 14839608648. Its totient is φ = 4942473480.

The previous prime is 9889009679. The next prime is 9889009699. The reversal of 9889009694 is 4969009889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9889009699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009592 + ... + 1019339.

It is an arithmetic number, because the mean of its divisors is an integer number (1854951081).

Almost surely, 2^9889009694 is an apocalyptic number.

9889009694 is a deficient number, since it is larger than the sum of its proper divisors (4950598954).

9889009694 is a wasteful number, since it uses less digits than its factorization.

9889009694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031370.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The square root of 9889009694 is about 99443.5000087990. The cubic root of 9889009694 is about 2146.4343055991.

The spelling of 9889009694 in words is "nine billion, eight hundred eighty-nine million, nine thousand, six hundred ninety-four".