12809038 has 16 divisors (see below), whose sum is σ = 21035520. Its totient is φ = 5801400.

The previous prime is 12809023. The next prime is 12809047. The reversal of 12809038 is 83090821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6403 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1314720).

Almost surely, 2^12809038 is an apocalyptic number.

12809038 is a deficient number, since it is larger than the sum of its proper divisors (8226482).

12809038 is a wasteful number, since it uses less digits than its factorization.

12809038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12809038 is about 3578.9716400106. The cubic root of 12809038 is about 233.9764629210.

Adding to 12809038 its reverse (83090821), we get a palindrome (95899859).

The spelling of 12809038 in words is "twelve million, eight hundred nine thousand, thirty-eight".