211074889 has 4 divisors (see below), whose sum is σ = 212737024. Its totient is φ = 209412756.

The previous prime is 211074859. The next prime is 211074911. The reversal of 211074889 is 988470112.

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 211074889 - 2¹³ = 211066697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211074859) 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, 830877 + ... + 831130.

It is an arithmetic number, because the mean of its divisors is an integer number (53184256).

Almost surely, 2^211074889 is an apocalyptic number.

It is an amenable number.

211074889 is a deficient number, since it is larger than the sum of its proper divisors (1662135).

211074889 is a wasteful number, since it uses less digits than its factorization.

211074889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662134.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 211074889 is about 14528.4166033329. The cubic root of 211074889 is about 595.4046058130.

The spelling of 211074889 in words is "two hundred eleven million, seventy-four thousand, eight hundred eighty-nine".