12662678 has 24 divisors (see below), whose sum is σ = 22262832. Its totient is φ = 5385744.

The previous prime is 12662659. The next prime is 12662681. The reversal of 12662678 is 87626621.

It is a happy number.

12662678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14975 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (927618).

Almost surely, 2^12662678 is an apocalyptic number.

12662678 is a deficient number, since it is larger than the sum of its proper divisors (9600154).

12662678 is a wasteful number, since it uses less digits than its factorization.

12662678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 989 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 12662678 is about 3558.4656805989. The cubic root of 12662678 is about 233.0818846825.

The spelling of 12662678 in words is "twelve million, six hundred sixty-two thousand, six hundred seventy-eight".