9921299 has 2 divisors, whose sum is σ = 9921300. Its totient is φ = 9921298.

The previous prime is 9921283. The next prime is 9921311.

9921299 is nontrivially palindromic in base 10.

9921299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9921299 - 2⁴ = 9921283 is a prime.

It is not a weakly prime, because it can be changed into another prime (9921259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4960649 + 4960650.

It is an arithmetic number, because the mean of its divisors is an integer number (4960650).

Almost surely, 2^9921299 is an apocalyptic number.

9921299 is a deficient number, since it is larger than the sum of its proper divisors (1).

9921299 is an equidigital number, since it uses as much as digits as its factorization.

9921299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 41.

The square root of 9921299 is about 3149.8093593105. The cubic root of 9921299 is about 214.8767925778.

The spelling of 9921299 in words is "nine million, nine hundred twenty-one thousand, two hundred ninety-nine".