12809699 has 8 divisors (see below), whose sum is σ = 14673408. Its totient is φ = 10954440.

The previous prime is 12809647. The next prime is 12809701. The reversal of 12809699 is 99690821.

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

It is not a de Polignac number, because 12809699 - 2¹² = 12805603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12809609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (1834176).

Almost surely, 2^12809699 is an apocalyptic number.

12809699 is a deficient number, since it is larger than the sum of its proper divisors (1863709).

12809699 is an equidigital number, since it uses as much as digits as its factorization.

12809699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 12809699 is about 3579.0639837812. The cubic root of 12809699 is about 233.9804875735.

The spelling of 12809699 in words is "twelve million, eight hundred nine thousand, six hundred ninety-nine".