1208863 has 2 divisors, whose sum is σ = 1208864. Its totient is φ = 1208862.

The previous prime is 1208849. The next prime is 1208873. The reversal of 1208863 is 3688021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3688021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1208863 is a prime.

It is a super-2 number, since 2×1208863² = 2922699505538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1208813) 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, 604431 + 604432.

It is an arithmetic number, because the mean of its divisors is an integer number (604432).

2^1208863 is an apocalyptic number.

1208863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208863 is an equidigital number, since it uses as much as digits as its factorization.

1208863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1208863 is about 1099.4830603515. The cubic root of 1208863 is about 106.5268360888.

The spelling of 1208863 in words is "one million, two hundred eight thousand, eight hundred sixty-three".