14220587 has 4 divisors (see below), whose sum is σ = 14228880. Its totient is φ = 14212296.

The previous prime is 14220559. The next prime is 14220611. The reversal of 14220587 is 78502241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 78502241 = 2351 ⋅33391.

It is a cyclic number.

It is not a de Polignac number, because 14220587 - 2¹⁰ = 14219563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14222587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (3557220).

Almost surely, 2^14220587 is an apocalyptic number.

14220587 is a deficient number, since it is larger than the sum of its proper divisors (8293).

14220587 is an equidigital number, since it uses as much as digits as its factorization.

14220587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 14220587 is about 3771.0193582107. The cubic root of 14220587 is about 242.2734597426.

The spelling of 14220587 in words is "fourteen million, two hundred twenty thousand, five hundred eighty-seven".