13428803 has 4 divisors (see below), whose sum is σ = 14012688. Its totient is φ = 12844920.

The previous prime is 13428773. The next prime is 13428809. The reversal of 13428803 is 30882431.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13428803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13428809) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 291908 + ... + 291953.

It is an arithmetic number, because the mean of its divisors is an integer number (3503172).

Almost surely, 2^13428803 is an apocalyptic number.

13428803 is a deficient number, since it is larger than the sum of its proper divisors (583885).

13428803 is an equidigital number, since it uses as much as digits as its factorization.

13428803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583884.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 13428803 is about 3664.5331216950. The cubic root of 13428803 is about 237.6908338794.

The spelling of 13428803 in words is "thirteen million, four hundred twenty-eight thousand, eight hundred three".