14399447 has 4 divisors (see below), whose sum is σ = 14407080. Its totient is φ = 14391816.

The previous prime is 14399443. The next prime is 14399461. The reversal of 14399447 is 74499341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74499341 = 7 ⋅10642763.

It is a cyclic number.

It is not a de Polignac number, because 14399447 - 2² = 14399443 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 (14399443) 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, 1304 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (3601770).

Almost surely, 2^14399447 is an apocalyptic number.

14399447 is a deficient number, since it is larger than the sum of its proper divisors (7633).

14399447 is an equidigital number, since it uses as much as digits as its factorization.

14399447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632.

The product of its digits is 108864, while the sum is 41.

The square root of 14399447 is about 3794.6603273547. The cubic root of 14399447 is about 243.2849654704.

The spelling of 14399447 in words is "fourteen million, three hundred ninety-nine thousand, four hundred forty-seven".