9774971 has 2 divisors, whose sum is σ = 9774972. Its totient is φ = 9774970.

The previous prime is 9774967. The next prime is 9774991. The reversal of 9774971 is 1794779.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9774971 - 2² = 9774967 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9774901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4887485 + 4887486.

It is an arithmetic number, because the mean of its divisors is an integer number (4887486).

Almost surely, 2^9774971 is an apocalyptic number.

9774971 is a deficient number, since it is larger than the sum of its proper divisors (1).

9774971 is an equidigital number, since it uses as much as digits as its factorization.

9774971 is an evil number, because the sum of its binary digits is even.

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

The square root of 9774971 is about 3126.4950023949. The cubic root of 9774971 is about 213.8151590505.

The spelling of 9774971 in words is "nine million, seven hundred seventy-four thousand, nine hundred seventy-one".