12662688 has 48 divisors (see below), whose sum is σ = 35199360. Its totient is φ = 3972096.

The previous prime is 12662687. The next prime is 12662711. The reversal of 12662688 is 88626621.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12662681) 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, 2248 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (733320).

Almost surely, 2^12662688 is an apocalyptic number.

It is an amenable number.

12662688 is an abundant number, since it is smaller than the sum of its proper divisors (22536672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12662688 is a wasteful number, since it uses less digits than its factorization.

12662688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789 (or 7781 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 12662688 is about 3558.4670856986. The cubic root of 12662688 is about 233.0819460391.

The spelling of 12662688 in words is "twelve million, six hundred sixty-two thousand, six hundred eighty-eight".