12566906 has 8 divisors (see below), whose sum is σ = 20564064. Its totient is φ = 5712220.

The previous prime is 12566903. The next prime is 12566909. The reversal of 12566906 is 60966521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12566903) and next prime (12566909).

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

It is not an unprimeable number, because it can be changed into a prime (12566903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285590 + ... + 285633.

It is an arithmetic number, because the mean of its divisors is an integer number (2570508).

Almost surely, 2^12566906 is an apocalyptic number.

12566906 is a deficient number, since it is larger than the sum of its proper divisors (7997158).

12566906 is a wasteful number, since it uses less digits than its factorization.

12566906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571236.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 12566906 is about 3544.9832157572. The cubic root of 12566906 is about 232.4927719648.

The spelling of 12566906 in words is "twelve million, five hundred sixty-six thousand, nine hundred six".