14911987 has 8 divisors (see below), whose sum is σ = 15330672. Its totient is φ = 14496000.

The previous prime is 14911957. The next prime is 14911991. The reversal of 14911987 is 78911941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14911987 - 2⁷ = 14911859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14911957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15988 + ... + 16894.

It is an arithmetic number, because the mean of its divisors is an integer number (1916334).

Almost surely, 2^14911987 is an apocalyptic number.

14911987 is a deficient number, since it is larger than the sum of its proper divisors (418685).

14911987 is an equidigital number, since it uses as much as digits as its factorization.

14911987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its digits is 18144, while the sum is 40.

The square root of 14911987 is about 3861.6042003292. The cubic root of 14911987 is about 246.1379082204.

The spelling of 14911987 in words is "fourteen million, nine hundred eleven thousand, nine hundred eighty-seven".