12803399 has 4 divisors (see below), whose sum is σ = 14632464. Its totient is φ = 10974336.

The previous prime is 12803393. The next prime is 12803407. The reversal of 12803399 is 99330821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12803399 - 2¹⁶ = 12737863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12803393) by changing a digit.

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, 914522 + ... + 914535.

It is an arithmetic number, because the mean of its divisors is an integer number (3658116).

Almost surely, 2^12803399 is an apocalyptic number.

12803399 is a deficient number, since it is larger than the sum of its proper divisors (1829065).

12803399 is an equidigital number, since it uses as much as digits as its factorization.

12803399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829064.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12803399 is about 3578.1837571595. The cubic root of 12803399 is about 233.9421229251.

The spelling of 12803399 in words is "twelve million, eight hundred three thousand, three hundred ninety-nine".