12806918 has 8 divisors (see below), whose sum is σ = 19282080. Its totient is φ = 6379560.

The previous prime is 12806903. The next prime is 12806923. The reversal of 12806918 is 81960821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 11273 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (2410260).

Almost surely, 2^12806918 is an apocalyptic number.

12806918 is a deficient number, since it is larger than the sum of its proper divisors (6475162).

12806918 is a wasteful number, since it uses less digits than its factorization.

12806918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12806918 is about 3578.6754532927. The cubic root of 12806918 is about 233.9635538727.

The spelling of 12806918 in words is "twelve million, eight hundred six thousand, nine hundred eighteen".