13428293 has 4 divisors (see below), whose sum is σ = 13444320. Its totient is φ = 13412268.

The previous prime is 13428271. The next prime is 13428319. The reversal of 13428293 is 39282431.

It is a happy number.

13428293 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39282431 = 229 ⋅171539.

It is a cyclic number.

It is not a de Polignac number, because 13428293 - 2¹⁸ = 13166149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428263) 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, 6683 + ... + 8456.

It is an arithmetic number, because the mean of its divisors is an integer number (3361080).

Almost surely, 2^13428293 is an apocalyptic number.

It is an amenable number.

13428293 is a deficient number, since it is larger than the sum of its proper divisors (16027).

13428293 is an equidigital number, since it uses as much as digits as its factorization.

13428293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026.

The product of its digits is 10368, while the sum is 32.

The square root of 13428293 is about 3664.4635350894. The cubic root of 13428293 is about 237.6878248284.

The spelling of 13428293 in words is "thirteen million, four hundred twenty-eight thousand, two hundred ninety-three".