11387863 has 2 divisors, whose sum is σ = 11387864. Its totient is φ = 11387862.

The previous prime is 11387861. The next prime is 11387867. The reversal of 11387863 is 36878311.

11387863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11387863 - 2¹ = 11387861 is a prime.

Together with 11387861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11387861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5693931 + 5693932.

It is an arithmetic number, because the mean of its divisors is an integer number (5693932).

Almost surely, 2^11387863 is an apocalyptic number.

11387863 is a deficient number, since it is larger than the sum of its proper divisors (1).

11387863 is an equidigital number, since it uses as much as digits as its factorization.

11387863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 11387863 is about 3374.5907900070. The cubic root of 11387863 is about 224.9818125217.

The spelling of 11387863 in words is "eleven million, three hundred eighty-seven thousand, eight hundred sixty-three".