13428773 has 2 divisors, whose sum is σ = 13428774. Its totient is φ = 13428772.

The previous prime is 13428731. The next prime is 13428809. The reversal of 13428773 is 37782431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13300609 + 128164 = 3647^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 13428773 - 2¹⁰ = 13427749 is a prime.

It is a super-3 number, since 3×13428773³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13428703) 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 as a sum of consecutive naturals, namely, 6714386 + 6714387.

It is an arithmetic number, because the mean of its divisors is an integer number (6714387).

Almost surely, 2^13428773 is an apocalyptic number.

It is an amenable number.

13428773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13428773 is an equidigital number, since it uses as much as digits as its factorization.

13428773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 13428773 is about 3664.5290284019. The cubic root of 13428773 is about 237.6906568785.

The spelling of 13428773 in words is "thirteen million, four hundred twenty-eight thousand, seven hundred seventy-three".