14228987 has 2 divisors, whose sum is σ = 14228988. Its totient is φ = 14228986.

The previous prime is 14228933. The next prime is 14228989. The reversal of 14228987 is 78982241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14228987 - 2⁶ = 14228923 is a prime.

Together with 14228989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14228989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7114493 + 7114494.

It is an arithmetic number, because the mean of its divisors is an integer number (7114494).

Almost surely, 2^14228987 is an apocalyptic number.

14228987 is a deficient number, since it is larger than the sum of its proper divisors (1).

14228987 is an equidigital number, since it uses as much as digits as its factorization.

14228987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 14228987 is about 3772.1329509974. The cubic root of 14228987 is about 242.3211534252.

The spelling of 14228987 in words is "fourteen million, two hundred twenty-eight thousand, nine hundred eighty-seven".