14643993 has 48 divisors (see below), whose sum is σ = 25025280. Its totient is φ = 7547904.

The previous prime is 14643991. The next prime is 14644013. The reversal of 14643993 is 39934641.

It is not a de Polignac number, because 14643993 - 2¹ = 14643991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (14643991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150921 + ... + 151017.

It is an arithmetic number, because the mean of its divisors is an integer number (521360).

Almost surely, 2^14643993 is an apocalyptic number.

14643993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

14643993 is a deficient number, since it is larger than the sum of its proper divisors (10381287).

14643993 is a wasteful number, since it uses less digits than its factorization.

14643993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 199 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 14643993 is about 3826.7470520012. The cubic root of 14643993 is about 244.6544789305.

The spelling of 14643993 in words is "fourteen million, six hundred forty-three thousand, nine hundred ninety-three".