9974609 has 2 divisors, whose sum is σ = 9974610. Its totient is φ = 9974608.

The previous prime is 9974561. The next prime is 9974611. The reversal of 9974609 is 9064799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8720209 + 1254400 = 2953^2 + 1120^2 .

It is a cyclic number.

It is not a de Polignac number, because 9974609 - 2⁸ = 9974353 is a prime.

It is a Sophie Germain prime.

Together with 9974611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9974609.

It is not a weakly prime, because it can be changed into another prime (9974689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987304 + 4987305.

It is an arithmetic number, because the mean of its divisors is an integer number (4987305).

Almost surely, 2^9974609 is an apocalyptic number.

It is an amenable number.

9974609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9974609 is an equidigital number, since it uses as much as digits as its factorization.

9974609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 9974609 is about 3158.2604389125. The cubic root of 9974609 is about 215.2609702844.

The spelling of 9974609 in words is "nine million, nine hundred seventy-four thousand, six hundred nine".