14947987 has 4 divisors (see below), whose sum is σ = 14957416. Its totient is φ = 14938560.

The previous prime is 14947969. The next prime is 14947993. The reversal of 14947987 is 78974941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14947987 - 2¹⁹ = 14423699 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 14947987.

It is not an unprimeable number, because it can be changed into a prime (14947937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1689 + ... + 5722.

It is an arithmetic number, because the mean of its divisors is an integer number (3739354).

Almost surely, 2^14947987 is an apocalyptic number.

14947987 is a deficient number, since it is larger than the sum of its proper divisors (9429).

14947987 is an equidigital number, since it uses as much as digits as its factorization.

14947987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9428.

The product of its digits is 508032, while the sum is 49.

The square root of 14947987 is about 3866.2626656760. The cubic root of 14947987 is about 246.3358215643.

The spelling of 14947987 in words is "fourteen million, nine hundred forty-seven thousand, nine hundred eighty-seven".