9908945 has 8 divisors (see below), whose sum is σ = 11962944. Its totient is φ = 7879024.

The previous prime is 9908939. The next prime is 9908957. The reversal of 9908945 is 5498099.

9908945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9908945 - 2⁶ = 9908881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9908896 and 9908905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5099 + ... + 6768.

It is an arithmetic number, because the mean of its divisors is an integer number (1495368).

Almost surely, 2^9908945 is an apocalyptic number.

It is an amenable number.

9908945 is a deficient number, since it is larger than the sum of its proper divisors (2053999).

9908945 is a wasteful number, since it uses less digits than its factorization.

9908945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12039.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 9908945 is about 3147.8476773821. The cubic root of 9908945 is about 214.7875673500.

The spelling of 9908945 in words is "nine million, nine hundred eight thousand, nine hundred forty-five".