14220747 has 12 divisors (see below), whose sum is σ = 20878624. Its totient is φ = 9324720.

The previous prime is 14220719. The next prime is 14220749. The reversal of 14220747 is 74702241.

It is a happy number.

It is not a de Polignac number, because 14220747 - 2¹⁸ = 13958603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14220747.

It is not an unprimeable number, because it can be changed into a prime (14220749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12403 + ... + 13500.

Almost surely, 2^14220747 is an apocalyptic number.

14220747 is a deficient number, since it is larger than the sum of its proper divisors (6657877).

14220747 is a wasteful number, since it uses less digits than its factorization.

14220747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25970 (or 25967 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 14220747 is about 3771.0405725741. The cubic root of 14220747 is about 242.2743683692.

Adding to 14220747 its reverse (74702241), we get a palindrome (88922988).

The spelling of 14220747 in words is "fourteen million, two hundred twenty thousand, seven hundred forty-seven".