9921283 has 2 divisors, whose sum is σ = 9921284. Its totient is φ = 9921282.

The previous prime is 9921259. The next prime is 9921299. The reversal of 9921283 is 3821299.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9921283 - 2¹⁷ = 9790211 is a prime.

It is not a weakly prime, because it can be changed into another prime (9921383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4960641 + 4960642.

It is an arithmetic number, because the mean of its divisors is an integer number (4960642).

Almost surely, 2^9921283 is an apocalyptic number.

9921283 is a deficient number, since it is larger than the sum of its proper divisors (1).

9921283 is an equidigital number, since it uses as much as digits as its factorization.

9921283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 9921283 is about 3149.8068194732. The cubic root of 9921283 is about 214.8766770677.

The spelling of 9921283 in words is "nine million, nine hundred twenty-one thousand, two hundred eighty-three".