14938987 has 4 divisors (see below), whose sum is σ = 17073136. Its totient is φ = 12804840.

The previous prime is 14938981. The next prime is 14938991. The reversal of 14938987 is 78983941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14938987 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 14938987.

It is not an unprimeable number, because it can be changed into a prime (14938981) 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, 1067064 + ... + 1067077.

It is an arithmetic number, because the mean of its divisors is an integer number (4268284).

Almost surely, 2^14938987 is an apocalyptic number.

14938987 is a deficient number, since it is larger than the sum of its proper divisors (2134149).

14938987 is an equidigital number, since it uses as much as digits as its factorization.

14938987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134148.

The product of its digits is 435456, while the sum is 49.

The square root of 14938987 is about 3865.0985757158. The cubic root of 14938987 is about 246.2863730445.

The spelling of 14938987 in words is "fourteen million, nine hundred thirty-eight thousand, nine hundred eighty-seven".