12883681 has 4 divisors (see below), whose sum is σ = 12910000. Its totient is φ = 12857364.

The previous prime is 12883643. The next prime is 12883709. The reversal of 12883681 is 18638821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12883681 - 2¹⁵ = 12850913 is a prime.

It is a super-2 number, since 2×12883681² = 331978472219522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12883681.

It is not an unprimeable number, because it can be changed into a prime (12883601) 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 in 3 ways as a sum of consecutive naturals, for example, 12411 + ... + 13408.

It is an arithmetic number, because the mean of its divisors is an integer number (3227500).

Almost surely, 2^12883681 is an apocalyptic number.

It is an amenable number.

12883681 is a deficient number, since it is larger than the sum of its proper divisors (26319).

12883681 is an equidigital number, since it uses as much as digits as its factorization.

12883681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26318.

The product of its digits is 18432, while the sum is 37.

The square root of 12883681 is about 3589.3844876246. The cubic root of 12883681 is about 234.4300720600.

The spelling of 12883681 in words is "twelve million, eight hundred eighty-three thousand, six hundred eighty-one".