214447489 has 4 divisors (see below), whose sum is σ = 221842260. Its totient is φ = 207052720.

The previous prime is 214447481. The next prime is 214447559. The reversal of 214447489 is 984744412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134165889 + 80281600 = 11583^2 + 8960^2 .

It is a cyclic number.

It is not a de Polignac number, because 214447489 - 2³ = 214447481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214447481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3697342 + ... + 3697399.

It is an arithmetic number, because the mean of its divisors is an integer number (55460565).

Almost surely, 2^214447489 is an apocalyptic number.

214447489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

214447489 is a deficient number, since it is larger than the sum of its proper divisors (7394771).

214447489 is an equidigital number, since it uses as much as digits as its factorization.

214447489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7394770.

The product of its digits is 258048, while the sum is 43.

The square root of 214447489 is about 14644.0257101659. The cubic root of 214447489 is about 598.5590319369.

The spelling of 214447489 in words is "two hundred fourteen million, four hundred forty-seven thousand, four hundred eighty-nine".