14257393 has 4 divisors (see below), whose sum is σ = 14266368. Its totient is φ = 14248420.

The previous prime is 14257343. The next prime is 14257421. The reversal of 14257393 is 39375241.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39375241 = 23 ⋅1711967.

It is a cyclic number.

It is not a de Polignac number, because 14257393 - 2⁹ = 14256881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14257333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393 + ... + 5518.

It is an arithmetic number, because the mean of its divisors is an integer number (3566592).

Almost surely, 2^14257393 is an apocalyptic number.

It is an amenable number.

14257393 is a deficient number, since it is larger than the sum of its proper divisors (8975).

14257393 is an equidigital number, since it uses as much as digits as its factorization.

14257393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974.

The product of its digits is 22680, while the sum is 34.

The square root of 14257393 is about 3775.8963174325. The cubic root of 14257393 is about 242.4822986335.

The spelling of 14257393 in words is "fourteen million, two hundred fifty-seven thousand, three hundred ninety-three".