9974897 has 2 divisors, whose sum is σ = 9974898. Its totient is φ = 9974896.

The previous prime is 9974843. The next prime is 9974911. The reversal of 9974897 is 7984799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9740641 + 234256 = 3121^2 + 484^2 .

It is a cyclic number.

It is not a de Polignac number, because 9974897 - 2¹⁸ = 9712753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9974807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987448 + 4987449.

It is an arithmetic number, because the mean of its divisors is an integer number (4987449).

Almost surely, 2^9974897 is an apocalyptic number.

It is an amenable number.

9974897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9974897 is an equidigital number, since it uses as much as digits as its factorization.

9974897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 53.

The square root of 9974897 is about 3158.3060333033. The cubic root of 9974897 is about 215.2630420302.

The spelling of 9974897 in words is "nine million, nine hundred seventy-four thousand, eight hundred ninety-seven".