14391993 has 16 divisors (see below), whose sum is σ = 23924736. Its totient is φ = 7476240.

The previous prime is 14391989. The next prime is 14392003. The reversal of 14391993 is 39919341.

It is not a de Polignac number, because 14391993 - 2² = 14391989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14391973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30921 + ... + 31382.

It is an arithmetic number, because the mean of its divisors is an integer number (1495296).

Almost surely, 2^14391993 is an apocalyptic number.

It is an amenable number.

14391993 is a deficient number, since it is larger than the sum of its proper divisors (9532743).

14391993 is a wasteful number, since it uses less digits than its factorization.

14391993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62324.

The product of its digits is 26244, while the sum is 39.

The square root of 14391993 is about 3793.6780306188. The cubic root of 14391993 is about 243.2429786927.

The spelling of 14391993 in words is "fourteen million, three hundred ninety-one thousand, nine hundred ninety-three".