211489 has 4 divisors (see below), whose sum is σ = 222640. Its totient is φ = 200340.

The previous prime is 211469. The next prime is 211493. The reversal of 211489 is 984112.

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 211489 - 2⁵ = 211457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211469) 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, 5547 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (55660).

2²¹¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

211489 is a deficient number, since it is larger than the sum of its proper divisors (11151).

211489 is a wasteful number, since it uses less digits than its factorization.

211489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11150.

The product of its digits is 576, while the sum is 25.

The square root of 211489 is about 459.8793319992. The cubic root of 211489 is about 59.5793729199.

The spelling of 211489 in words is "two hundred eleven thousand, four hundred eighty-nine".