9974021 has 2 divisors, whose sum is σ = 9974022. Its totient is φ = 9974020.

The previous prime is 9973981. The next prime is 9974039. The reversal of 9974021 is 1204799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7365796 + 2608225 = 2714^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 9974021 - 2¹⁰ = 9972997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9974051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987010 + 4987011.

It is an arithmetic number, because the mean of its divisors is an integer number (4987011).

Almost surely, 2^9974021 is an apocalyptic number.

It is an amenable number.

9974021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9974021 is an equidigital number, since it uses as much as digits as its factorization.

9974021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9974021 is about 3158.1673483209. The cubic root of 9974021 is about 215.2567403462.

The spelling of 9974021 in words is "nine million, nine hundred seventy-four thousand, twenty-one".