12456699 has 16 divisors (see below), whose sum is σ = 18155520. Its totient is φ = 7562880.

The previous prime is 12456683. The next prime is 12456709. The reversal of 12456699 is 99665421.

It is a happy number.

It is not a de Polignac number, because 12456699 - 2⁴ = 12456683 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12456699.

It is not an unprimeable number, because it can be changed into a prime (12456649) 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, 2359 + ... + 5520.

It is an arithmetic number, because the mean of its divisors is an integer number (1134720).

Almost surely, 2^12456699 is an apocalyptic number.

12456699 is a deficient number, since it is larger than the sum of its proper divisors (5698821).

12456699 is a wasteful number, since it uses less digits than its factorization.

12456699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930.

The product of its digits is 116640, while the sum is 42.

The square root of 12456699 is about 3529.4049073463. The cubic root of 12456699 is about 231.8111510642.

The spelling of 12456699 in words is "twelve million, four hundred fifty-six thousand, six hundred ninety-nine".