12406771 has 4 divisors (see below), whose sum is σ = 13361152. Its totient is φ = 11452392.

The previous prime is 12406769. The next prime is 12406777. The reversal of 12406771 is 17760421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12406771 - 2¹ = 12406769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12406777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477171 + ... + 477196.

It is an arithmetic number, because the mean of its divisors is an integer number (3340288).

Almost surely, 2^12406771 is an apocalyptic number.

12406771 is a deficient number, since it is larger than the sum of its proper divisors (954381).

12406771 is an equidigital number, since it uses as much as digits as its factorization.

12406771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954380.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 12406771 is about 3522.3246585174. The cubic root of 12406771 is about 231.5010270407.

The spelling of 12406771 in words is "twelve million, four hundred six thousand, seven hundred seventy-one".