14987287 has 24 divisors (see below), whose sum is σ = 18468000. Its totient is φ = 12108096.

The previous prime is 14987281. The next prime is 14987293. The reversal of 14987287 is 78278941.

It is an interprime number because it is at equal distance from previous prime (14987281) and next prime (14987293).

It is not a de Polignac number, because 14987287 - 2²³ = 6598679 is a prime.

It is a Duffinian number.

Its product of digits (225792) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14987281) 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 23 ways as a sum of consecutive naturals, for example, 75214 + ... + 75412.

It is an arithmetic number, because the mean of its divisors is an integer number (769500).

Almost surely, 2^14987287 is an apocalyptic number.

14987287 is a deficient number, since it is larger than the sum of its proper divisors (3480713).

14987287 is a wasteful number, since it uses less digits than its factorization.

14987287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 288 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 14987287 is about 3871.3417570656. The cubic root of 14987287 is about 246.5515145090.

The spelling of 14987287 in words is "fourteen million, nine hundred eighty-seven thousand, two hundred eighty-seven".