9954983917 has 2 divisors, whose sum is σ = 9954983918. Its totient is φ = 9954983916.

The previous prime is 9954983893. The next prime is 9954983933. The reversal of 9954983917 is 7193894599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9681379236 + 273604681 = 98394^2 + 16541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9954983917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9954983957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977491958 + 4977491959.

It is an arithmetic number, because the mean of its divisors is an integer number (4977491959).

Almost surely, 2^9954983917 is an apocalyptic number.

It is an amenable number.

9954983917 is a deficient number, since it is larger than the sum of its proper divisors (1).

9954983917 is an equidigital number, since it uses as much as digits as its factorization.

9954983917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22044960, while the sum is 64.

The square root of 9954983917 is about 99774.6657072826. The cubic root of 9954983917 is about 2151.1970198925.

The spelling of 9954983917 in words is "nine billion, nine hundred fifty-four million, nine hundred eighty-three thousand, nine hundred seventeen".