849091211 has 4 divisors (see below), whose sum is σ = 849278424. Its totient is φ = 848904000.

The previous prime is 849091193. The next prime is 849091241. The reversal of 849091211 is 112190948.

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

It is a cyclic number.

It is not a de Polignac number, because 849091211 - 2¹⁴ = 849074827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849091241) 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, 86630 + ... + 95931.

It is an arithmetic number, because the mean of its divisors is an integer number (212319606).

Almost surely, 2^849091211 is an apocalyptic number.

849091211 is a deficient number, since it is larger than the sum of its proper divisors (187213).

849091211 is a wasteful number, since it uses less digits than its factorization.

849091211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187212.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 849091211 is about 29139.1697033392. The cubic root of 849091211 is about 946.9305219158.

The spelling of 849091211 in words is "eight hundred forty-nine million, ninety-one thousand, two hundred eleven".