12863618 has 16 divisors (see below), whose sum is σ = 19816704. Its totient is φ = 6259680.

The previous prime is 12863573. The next prime is 12863623. The reversal of 12863618 is 81636821.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 26171 + ... + 26657.

It is an arithmetic number, because the mean of its divisors is an integer number (1238544).

Almost surely, 2^12863618 is an apocalyptic number.

12863618 is a deficient number, since it is larger than the sum of its proper divisors (6953086).

12863618 is a wasteful number, since it uses less digits than its factorization.

12863618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its digits is 13824, while the sum is 35.

The square root of 12863618 is about 3586.5886298822. The cubic root of 12863618 is about 234.3083207769.

The spelling of 12863618 in words is "twelve million, eight hundred sixty-three thousand, six hundred eighteen".