12466809 has 12 divisors (see below), whose sum is σ = 18044052. Its totient is φ = 8294400.

The previous prime is 12466807. The next prime is 12466841. The reversal of 12466809 is 90866421.

It can be written as a sum of positive squares in 2 ways, for example, as 9734400 + 2732409 = 3120^2 + 1653^2 .

It is not a de Polignac number, because 12466809 - 2¹ = 12466807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12466807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4689 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (1503671).

Almost surely, 2^12466809 is an apocalyptic number.

It is an amenable number.

12466809 is a deficient number, since it is larger than the sum of its proper divisors (5577243).

12466809 is a wasteful number, since it uses less digits than its factorization.

12466809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 12466809 is about 3530.8368696387. The cubic root of 12466809 is about 231.8738476366.

The spelling of 12466809 in words is "twelve million, four hundred sixty-six thousand, eight hundred nine".