12805403 has 8 divisors (see below), whose sum is σ = 14601888. Its totient is φ = 11124864.

The previous prime is 12805349. The next prime is 12805417. The reversal of 12805403 is 30450821.

12805403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12805403 - 2⁶ = 12805339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12805423) 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, 28751 + ... + 29192.

It is an arithmetic number, because the mean of its divisors is an integer number (1825236).

Almost surely, 2^12805403 is an apocalyptic number.

12805403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12805403 is a deficient number, since it is larger than the sum of its proper divisors (1796485).

12805403 is a wasteful number, since it uses less digits than its factorization.

12805403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57973.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12805403 is about 3578.4637765388. The cubic root of 12805403 is about 233.9543279018.

The spelling of 12805403 in words is "twelve million, eight hundred five thousand, four hundred three".