12803915 has 4 divisors (see below), whose sum is σ = 15364704. Its totient is φ = 10243128.

The previous prime is 12803909. The next prime is 12803933. The reversal of 12803915 is 51930821.

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 12803915 - 2⁶ = 12803851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280387 + ... + 1280396.

It is an arithmetic number, because the mean of its divisors is an integer number (3841176).

Almost surely, 2^12803915 is an apocalyptic number.

12803915 is a deficient number, since it is larger than the sum of its proper divisors (2560789).

12803915 is an equidigital number, since it uses as much as digits as its factorization.

12803915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560788.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12803915 is about 3578.2558600525. The cubic root of 12803915 is about 233.9452656456.

The spelling of 12803915 in words is "twelve million, eight hundred three thousand, nine hundred fifteen".