13428593 has 4 divisors (see below), whose sum is σ = 13443060. Its totient is φ = 13414128.

The previous prime is 13428563. The next prime is 13428617. The reversal of 13428593 is 39582431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10163344 + 3265249 = 3188^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 13428593 - 2⁶ = 13428529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13428533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738 + ... + 7731.

It is an arithmetic number, because the mean of its divisors is an integer number (3360765).

Almost surely, 2^13428593 is an apocalyptic number.

It is an amenable number.

13428593 is a deficient number, since it is larger than the sum of its proper divisors (14467).

13428593 is an equidigital number, since it uses as much as digits as its factorization.

13428593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466.

The product of its digits is 25920, while the sum is 35.

The square root of 13428593 is about 3664.5044685469. The cubic root of 13428593 is about 237.6895948676.

The spelling of 13428593 in words is "thirteen million, four hundred twenty-eight thousand, five hundred ninety-three".