12683618 has 4 divisors (see below), whose sum is σ = 19025430. Its totient is φ = 6341808.

The previous prime is 12683609. The next prime is 12683641. The reversal of 12683618 is 81638621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7856809 + 4826809 = 2803^2 + 2197^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170903 + ... + 3170906.

Almost surely, 2^12683618 is an apocalyptic number.

12683618 is a deficient number, since it is larger than the sum of its proper divisors (6341812).

12683618 is an equidigital number, since it uses as much as digits as its factorization.

12683618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341811.

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

The square root of 12683618 is about 3561.4067445323. The cubic root of 12683618 is about 233.2102947694.

The spelling of 12683618 in words is "twelve million, six hundred eighty-three thousand, six hundred eighteen".