9947803 has 2 divisors, whose sum is σ = 9947804. Its totient is φ = 9947802.

The previous prime is 9947779. The next prime is 9947837. The reversal of 9947803 is 3087499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9947803 - 2⁹ = 9947291 is a prime.

It is not a weakly prime, because it can be changed into another prime (9947863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4973901 + 4973902.

It is an arithmetic number, because the mean of its divisors is an integer number (4973902).

Almost surely, 2^9947803 is an apocalyptic number.

9947803 is a deficient number, since it is larger than the sum of its proper divisors (1).

9947803 is an equidigital number, since it uses as much as digits as its factorization.

9947803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 9947803 is about 3154.0137919800. The cubic root of 9947803 is about 215.0679648119.

The spelling of 9947803 in words is "nine million, nine hundred forty-seven thousand, eight hundred three".