12706899 has 4 divisors (see below), whose sum is σ = 16942536. Its totient is φ = 8471264.

The previous prime is 12706847. The next prime is 12706937. The reversal of 12706899 is 99860721.

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 12706899 - 2¹¹ = 12704851 is a prime.

It is a super-2 number, since 2×12706899² = 322930564392402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12706899.

It is not an unprimeable number, because it can be changed into a prime (12706819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117814 + ... + 2117819.

It is an arithmetic number, because the mean of its divisors is an integer number (4235634).

Almost surely, 2^12706899 is an apocalyptic number.

12706899 is a deficient number, since it is larger than the sum of its proper divisors (4235637).

12706899 is an equidigital number, since it uses as much as digits as its factorization.

12706899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235636.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12706899 is about 3564.6737578634. The cubic root of 12706899 is about 233.3528947319.

The spelling of 12706899 in words is "twelve million, seven hundred six thousand, eight hundred ninety-nine".