12809258 has 16 divisors (see below), whose sum is σ = 23955264. Its totient is φ = 4990560.

The previous prime is 12809221. The next prime is 12809281. The reversal of 12809258 is 85290821.

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 7 ways as a sum of consecutive naturals, for example, 41435 + ... + 41742.

It is an arithmetic number, because the mean of its divisors is an integer number (1497204).

Almost surely, 2^12809258 is an apocalyptic number.

12809258 is a deficient number, since it is larger than the sum of its proper divisors (11146006).

12809258 is a wasteful number, since it uses less digits than its factorization.

12809258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83197.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 12809258 is about 3579.0023749643. The cubic root of 12809258 is about 233.9778024577.

The spelling of 12809258 in words is "twelve million, eight hundred nine thousand, two hundred fifty-eight".