12866906 has 16 divisors (see below), whose sum is σ = 20901888. Its totient is φ = 5905200.

The previous prime is 12866899. The next prime is 12866911. The reversal of 12866906 is 60966821.

It is a self number, because there is not a number n which added to its sum of digits gives 12866906.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 6261.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^12866906 is an apocalyptic number.

12866906 is a deficient number, since it is larger than the sum of its proper divisors (8034982).

12866906 is a wasteful number, since it uses less digits than its factorization.

12866906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 12866906 is about 3587.0469748806. The cubic root of 12866906 is about 234.3282825048.

It can be divided in two parts, 1286 and 6906, that added together give a 13-th power (8192 = 2¹³).

The spelling of 12866906 in words is "twelve million, eight hundred sixty-six thousand, nine hundred six".