211937849 has 2 divisors, whose sum is σ = 211937850. Its totient is φ = 211937848.

The previous prime is 211937833. The next prime is 211937867. The reversal of 211937849 is 948739112.

211937849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186131449 + 25806400 = 13643^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 211937849 - 2⁴ = 211937833 is a prime.

It is not a weakly prime, because it can be changed into another prime (211937809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105968924 + 105968925.

It is an arithmetic number, because the mean of its divisors is an integer number (105968925).

Almost surely, 2^211937849 is an apocalyptic number.

It is an amenable number.

211937849 is a deficient number, since it is larger than the sum of its proper divisors (1).

211937849 is an equidigital number, since it uses as much as digits as its factorization.

211937849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 211937849 is about 14558.0853480119. The cubic root of 211937849 is about 596.2149212501.

The spelling of 211937849 in words is "two hundred eleven million, nine hundred thirty-seven thousand, eight hundred forty-nine".