9879903 has 24 divisors (see below), whose sum is σ = 16248960. Its totient is φ = 5726160.

The previous prime is 9879901. The next prime is 9879911. The reversal of 9879903 is 3099789.

It is a happy number.

It is not a de Polignac number, because 9879903 - 2¹ = 9879901 is a prime.

It is a super-2 number, since 2×9879903² = 195224966578818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108 + ... + 4446.

It is an arithmetic number, because the mean of its divisors is an integer number (677040).

Almost surely, 2^9879903 is an apocalyptic number.

9879903 is a deficient number, since it is larger than the sum of its proper divisors (6369057).

9879903 is a wasteful number, since it uses less digits than its factorization.

9879903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379 (or 4376 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9879903 is about 3143.2312991570. The cubic root of 9879903 is about 214.5775226336.

The spelling of 9879903 in words is "nine million, eight hundred seventy-nine thousand, nine hundred three".