9992291 has 2 divisors, whose sum is σ = 9992292. Its totient is φ = 9992290.

The previous prime is 9992273. The next prime is 9992321. The reversal of 9992291 is 1922999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9992291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9992201) 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, 4996145 + 4996146.

It is an arithmetic number, because the mean of its divisors is an integer number (4996146).

Almost surely, 2^9992291 is an apocalyptic number.

9992291 is a deficient number, since it is larger than the sum of its proper divisors (1).

9992291 is an equidigital number, since it uses as much as digits as its factorization.

9992291 is an odious number, because the sum of its binary digits is odd.

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

The square root of 9992291 is about 3161.0585252412. The cubic root of 9992291 is about 215.3880929809.

The spelling of 9992291 in words is "nine million, nine hundred ninety-two thousand, two hundred ninety-one".