9976321 has 2 divisors, whose sum is σ = 9976322. Its totient is φ = 9976320.

The previous prime is 9976313. The next prime is 9976333. The reversal of 9976321 is 1236799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7290000 + 2686321 = 2700^2 + 1639^2 .

It is a cyclic number.

It is not a de Polignac number, because 9976321 - 2³ = 9976313 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9976381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988160 + 4988161.

It is an arithmetic number, because the mean of its divisors is an integer number (4988161).

Almost surely, 2^9976321 is an apocalyptic number.

It is an amenable number.

9976321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9976321 is an equidigital number, since it uses as much as digits as its factorization.

9976321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 9976321 is about 3158.5314625629. The cubic root of 9976321 is about 215.2732850762.

The spelling of 9976321 in words is "nine million, nine hundred seventy-six thousand, three hundred twenty-one".