8191363 has 2 divisors, whose sum is σ = 8191364. Its totient is φ = 8191362.

The previous prime is 8191357. The next prime is 8191387. The reversal of 8191363 is 3631918.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8191363 is a prime.

It is not a weakly prime, because it can be changed into another prime (8191333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095681 + 4095682.

It is an arithmetic number, because the mean of its divisors is an integer number (4095682).

Almost surely, 2^8191363 is an apocalyptic number.

8191363 is a deficient number, since it is larger than the sum of its proper divisors (1).

8191363 is an equidigital number, since it uses as much as digits as its factorization.

8191363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 8191363 is about 2862.0557297160. The cubic root of 8191363 is about 201.5821427845.

The spelling of 8191363 in words is "eight million, one hundred ninety-one thousand, three hundred sixty-three".