9903147 has 8 divisors (see below), whose sum is σ = 13220160. Its totient is φ = 6594120.

The previous prime is 9903109. The next prime is 9903149. The reversal of 9903147 is 7413099.

9903147 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 9903147 - 2⁶ = 9903083 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

9903147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9903149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104 + ... + 4922.

It is an arithmetic number, because the mean of its divisors is an integer number (1652520).

Almost surely, 2^9903147 is an apocalyptic number.

9903147 is a deficient number, since it is larger than the sum of its proper divisors (3317013).

9903147 is a wasteful number, since it uses less digits than its factorization.

9903147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 9903147 is about 3146.9265959027. The cubic root of 9903147 is about 214.7456664451.

The spelling of 9903147 in words is "nine million, nine hundred three thousand, one hundred forty-seven".