12662881 has 16 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 9654480.

The previous prime is 12662869. The next prime is 12662887. The reversal of 12662881 is 18826621.

It is not a de Polignac number, because 12662881 - 2⁷ = 12662753 is a prime.

It is a super-2 number, since 2×12662881² = 320697110440322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12662887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 2^12662881 is an apocalyptic number.

12662881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12662881 is a deficient number, since it is larger than the sum of its proper divisors (3465119).

12662881 is a wasteful number, since it uses less digits than its factorization.

12662881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564.

The product of its digits is 9216, while the sum is 34.

The square root of 12662881 is about 3558.4942040138. The cubic root of 12662881 is about 233.0831302160.

The spelling of 12662881 in words is "twelve million, six hundred sixty-two thousand, eight hundred eighty-one".