9974771 has 2 divisors, whose sum is σ = 9974772. Its totient is φ = 9974770.

The previous prime is 9974761. The next prime is 9974773. The reversal of 9974771 is 1774799.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9974771 is a prime.

It is a Sophie Germain prime.

Together with 9974773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9974773) 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 as a sum of consecutive naturals, namely, 4987385 + 4987386.

It is an arithmetic number, because the mean of its divisors is an integer number (4987386).

Almost surely, 2^9974771 is an apocalyptic number.

9974771 is a deficient number, since it is larger than the sum of its proper divisors (1).

9974771 is an equidigital number, since it uses as much as digits as its factorization.

9974771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111132, while the sum is 44.

The square root of 9974771 is about 3158.2860858383. The cubic root of 9974771 is about 215.2621356463.

The spelling of 9974771 in words is "nine million, nine hundred seventy-four thousand, seven hundred seventy-one".