14663993 has 2 divisors, whose sum is σ = 14663994. Its totient is φ = 14663992.

The previous prime is 14663941. The next prime is 14664011. The reversal of 14663993 is 39936641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14341369 + 322624 = 3787^2 + 568^2 .

It is an emirp because it is prime and its reverse (39936641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14663993 - 2¹⁴ = 14647609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14663993.

It is not a weakly prime, because it can be changed into another prime (14665993) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7331996 + 7331997.

It is an arithmetic number, because the mean of its divisors is an integer number (7331997).

Almost surely, 2^14663993 is an apocalyptic number.

It is an amenable number.

14663993 is a deficient number, since it is larger than the sum of its proper divisors (1).

14663993 is an equidigital number, since it uses as much as digits as its factorization.

14663993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 14663993 is about 3829.3593458959. The cubic root of 14663993 is about 244.7658070292.

The spelling of 14663993 in words is "fourteen million, six hundred sixty-three thousand, nine hundred ninety-three".