214448809 has 4 divisors (see below), whose sum is σ = 214961040. Its totient is φ = 213936580.

The previous prime is 214448777. The next prime is 214448813. The reversal of 214448809 is 908844412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214448809 - 2⁵ = 214448777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214448609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255487 + ... + 256324.

It is an arithmetic number, because the mean of its divisors is an integer number (53740260).

Almost surely, 2^214448809 is an apocalyptic number.

It is an amenable number.

214448809 is a deficient number, since it is larger than the sum of its proper divisors (512231).

214448809 is an equidigital number, since it uses as much as digits as its factorization.

214448809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512230.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 214448809 is about 14644.0707796705. The cubic root of 214448809 is about 598.5602600485.

The spelling of 214448809 in words is "two hundred fourteen million, four hundred forty-eight thousand, eight hundred nine".