8397863 has 2 divisors, whose sum is σ = 8397864. Its totient is φ = 8397862.

The previous prime is 8397859. The next prime is 8397877. The reversal of 8397863 is 3687938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8397863 - 2² = 8397859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8397803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4198931 + 4198932.

It is an arithmetic number, because the mean of its divisors is an integer number (4198932).

Almost surely, 2^8397863 is an apocalyptic number.

8397863 is a deficient number, since it is larger than the sum of its proper divisors (1).

8397863 is an equidigital number, since it uses as much as digits as its factorization.

8397863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 8397863 is about 2897.9066582621. The cubic root of 8397863 is about 203.2620314960.

The spelling of 8397863 in words is "eight million, three hundred ninety-seven thousand, eight hundred sixty-three".