9979297 has 2 divisors, whose sum is σ = 9979298. Its totient is φ = 9979296.

The previous prime is 9979283. The next prime is 9979301. The reversal of 9979297 is 7929799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 16 = 3159^2 + 4^2 .

It is an emirp because it is prime and its reverse (7929799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9979297 - 2⁷ = 9979169 is a prime.

It is a super-2 number, since 2×9979297² = 199172737228418, which contains 22 as substring.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (9979897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989648 + 4989649.

It is an arithmetic number, because the mean of its divisors is an integer number (4989649).

Almost surely, 2^9979297 is an apocalyptic number.

It is an amenable number.

9979297 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979297 is an equidigital number, since it uses as much as digits as its factorization.

9979297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 642978, while the sum is 52.

The square root of 9979297 is about 3159.0025324460. The cubic root of 9979297 is about 215.2946887447.

The spelling of 9979297 in words is "nine million, nine hundred seventy-nine thousand, two hundred ninety-seven".