12809434 has 8 divisors (see below), whose sum is σ = 20960928. Its totient is φ = 5822460.

The previous prime is 12809359. The next prime is 12809491. The reversal of 12809434 is 43490821.

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

It is a junction number, because it is equal to n+sod(n) for n = 12809396 and 12809405.

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 3 ways as a sum of consecutive naturals, for example, 291102 + ... + 291145.

It is an arithmetic number, because the mean of its divisors is an integer number (2620116).

Almost surely, 2^12809434 is an apocalyptic number.

12809434 is a deficient number, since it is larger than the sum of its proper divisors (8151494).

12809434 is a wasteful number, since it uses less digits than its factorization.

12809434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582260.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12809434 is about 3579.0269627372. The cubic root of 12809434 is about 233.9788740759.

The spelling of 12809434 in words is "twelve million, eight hundred nine thousand, four hundred thirty-four".