211849 has 4 divisors (see below), whose sum is σ = 231120. Its totient is φ = 192580.

The previous prime is 211817. The next prime is 211859. The reversal of 211849 is 948112.

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 211849 - 2⁵ = 211817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211859) 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, 9619 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (57780).

2²¹¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

211849 is a deficient number, since it is larger than the sum of its proper divisors (19271).

211849 is a wasteful number, since it uses less digits than its factorization.

211849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19270.

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

The square root of 211849 is about 460.2705725983. The cubic root of 211849 is about 59.6131594143.

The spelling of 211849 in words is "two hundred eleven thousand, eight hundred forty-nine".