9911963 has 2 divisors, whose sum is σ = 9911964. Its totient is φ = 9911962.

The previous prime is 9911959. The next prime is 9911983. The reversal of 9911963 is 3691199.

It is a weak prime.

It is an emirp because it is prime and its reverse (3691199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9911963 - 2² = 9911959 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9911953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4955981 + 4955982.

It is an arithmetic number, because the mean of its divisors is an integer number (4955982).

Almost surely, 2^9911963 is an apocalyptic number.

9911963 is a deficient number, since it is larger than the sum of its proper divisors (1).

9911963 is an equidigital number, since it uses as much as digits as its factorization.

9911963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 38.

The square root of 9911963 is about 3148.3270160515. The cubic root of 9911963 is about 214.8093713220.

It can be divided in two parts, 991196 and 3, that added together give a palindrome (991199).

The spelling of 9911963 in words is "nine million, nine hundred eleven thousand, nine hundred sixty-three".