14211997 has 2 divisors, whose sum is σ = 14211998. Its totient is φ = 14211996.

The previous prime is 14211991. The next prime is 14212031. The reversal of 14211997 is 79911241.

It is an a-pointer prime, because the next prime (14212031) can be obtained adding 14211997 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14182756 + 29241 = 3766^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 14211997 - 2¹⁵ = 14179229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14211991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7105998 + 7105999.

It is an arithmetic number, because the mean of its divisors is an integer number (7105999).

Almost surely, 2^14211997 is an apocalyptic number.

It is an amenable number.

14211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

14211997 is an equidigital number, since it uses as much as digits as its factorization.

14211997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 34.

The square root of 14211997 is about 3769.8802368245. The cubic root of 14211997 is about 242.2246678468.

The spelling of 14211997 in words is "fourteen million, two hundred eleven thousand, nine hundred ninety-seven".