12406655 has 16 divisors (see below), whose sum is σ = 15412800. Its totient is φ = 9580032.

The previous prime is 12406649. The next prime is 12406657. The reversal of 12406655 is 55660421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12406655 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36647 + ... + 36983.

It is an arithmetic number, because the mean of its divisors is an integer number (963300).

Almost surely, 2^12406655 is an apocalyptic number.

12406655 is a deficient number, since it is larger than the sum of its proper divisors (3006145).

12406655 is a wasteful number, since it uses less digits than its factorization.

12406655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 12406655 is about 3522.3081920809. The cubic root of 12406655 is about 231.5003055475.

The spelling of 12406655 in words is "twelve million, four hundred six thousand, six hundred fifty-five".