9900803 has 16 divisors (see below), whose sum is σ = 11460960. Its totient is φ = 8467200.

The previous prime is 9900799. The next prime is 9900827. The reversal of 9900803 is 3080099.

It is a cyclic number.

It is not a de Polignac number, because 9900803 - 2² = 9900799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9900883) 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, 12701 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (716310).

Almost surely, 2^9900803 is an apocalyptic number.

9900803 is a deficient number, since it is larger than the sum of its proper divisors (1560157).

9900803 is a wasteful number, since it uses less digits than its factorization.

9900803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 9900803 is about 3146.5541469995. The cubic root of 9900803 is about 214.7287222164.

The spelling of 9900803 in words is "nine million, nine hundred thousand, eight hundred three".