9107989 has 16 divisors (see below), whose sum is σ = 10321920. Its totient is φ = 7965360.

The previous prime is 9107941. The next prime is 9107999. The reversal of 9107989 is 9897019.

9107989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9107989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9107909) 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, 40732 + ... + 40954.

It is an arithmetic number, because the mean of its divisors is an integer number (645120).

Almost surely, 2^9107989 is an apocalyptic number.

It is an amenable number.

9107989 is a deficient number, since it is larger than the sum of its proper divisors (1213931).

9107989 is a wasteful number, since it uses less digits than its factorization.

9107989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 9107989 is about 3017.9444991583. The cubic root of 9107989 is about 208.8370256390.

The spelling of 9107989 in words is "nine million, one hundred seven thousand, nine hundred eighty-nine".