14393947 has 4 divisors (see below), whose sum is σ = 14890320. Its totient is φ = 13897576.

The previous prime is 14393933. The next prime is 14393957. The reversal of 14393947 is 74939341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74939341 = 8287 ⋅9043.

It is a cyclic number.

It is not a de Polignac number, because 14393947 - 2²³ = 6005339 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14393957) 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, 248143 + ... + 248200.

It is an arithmetic number, because the mean of its divisors is an integer number (3722580).

Almost surely, 2^14393947 is an apocalyptic number.

14393947 is a deficient number, since it is larger than the sum of its proper divisors (496373).

14393947 is an equidigital number, since it uses as much as digits as its factorization.

14393947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496372.

The product of its digits is 81648, while the sum is 40.

The square root of 14393947 is about 3793.9355555940. The cubic root of 14393947 is about 243.2539865560.

The spelling of 14393947 in words is "fourteen million, three hundred ninety-three thousand, nine hundred forty-seven".