12668887 has 8 divisors (see below), whose sum is σ = 15795072. Its totient is φ = 9871800.

The previous prime is 12668881. The next prime is 12668891. The reversal of 12668887 is 78886621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12668887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82189 + ... + 82342.

It is an arithmetic number, because the mean of its divisors is an integer number (1974384).

Almost surely, 2^12668887 is an apocalyptic number.

12668887 is a deficient number, since it is larger than the sum of its proper divisors (3126185).

12668887 is a wasteful number, since it uses less digits than its factorization.

12668887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164549.

The product of its digits is 258048, while the sum is 46.

The square root of 12668887 is about 3559.3380002467. The cubic root of 12668887 is about 233.1199748070.

It can be divided in two parts, 1266 and 8887, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 12668887 in words is "twelve million, six hundred sixty-eight thousand, eight hundred eighty-seven".