14021487 has 24 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 8784720.

The previous prime is 14021459. The next prime is 14021503. The reversal of 14021487 is 78412041.

14021487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14021487 - 2¹² = 14017391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14021487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14021417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28312 + ... + 28802.

It is an arithmetic number, because the mean of its divisors is an integer number (895440).

Almost surely, 2^14021487 is an apocalyptic number.

14021487 is a deficient number, since it is larger than the sum of its proper divisors (7469073).

14021487 is a wasteful number, since it uses less digits than its factorization.

14021487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 14021487 is about 3744.5276070554. The cubic root of 14021487 is about 241.1374651212.

The spelling of 14021487 in words is "fourteen million, twenty-one thousand, four hundred eighty-seven".