14998993 has 4 divisors (see below), whose sum is σ = 15009280. Its totient is φ = 14988708.

The previous prime is 14998979. The next prime is 14999011. The reversal of 14998993 is 39989941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39989941 = 157 ⋅254713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14998993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14998993.

It is not an unprimeable number, because it can be changed into a prime (14998933) 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, 2505 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (3752320).

Almost surely, 2^14998993 is an apocalyptic number.

It is an amenable number.

14998993 is a deficient number, since it is larger than the sum of its proper divisors (10287).

14998993 is an equidigital number, since it uses as much as digits as its factorization.

14998993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286.

The product of its digits is 629856, while the sum is 52.

The square root of 14998993 is about 3872.8533408845. The cubic root of 14998993 is about 246.6156884750.

It can be divided in two parts, 1 and 4998993, that added together give a palindrome (4998994).

The spelling of 14998993 in words is "fourteen million, nine hundred ninety-eight thousand, nine hundred ninety-three".