9977329 has 2 divisors, whose sum is σ = 9977330. Its totient is φ = 9977328.

The previous prime is 9977327. The next prime is 9977339. The reversal of 9977329 is 9237799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7952400 + 2024929 = 2820^2 + 1423^2 .

It is an emirp because it is prime and its reverse (9237799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9977329 - 2¹ = 9977327 is a prime.

Together with 9977327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9977321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988664 + 4988665.

It is an arithmetic number, because the mean of its divisors is an integer number (4988665).

Almost surely, 2^9977329 is an apocalyptic number.

It is an amenable number.

9977329 is a deficient number, since it is larger than the sum of its proper divisors (1).

9977329 is an equidigital number, since it uses as much as digits as its factorization.

9977329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214326, while the sum is 46.

The square root of 9977329 is about 3158.6910263589. The cubic root of 9977329 is about 215.2805351825.

The spelling of 9977329 in words is "nine million, nine hundred seventy-seven thousand, three hundred twenty-nine".