211033897 has 2 divisors, whose sum is σ = 211033898. Its totient is φ = 211033896.

The previous prime is 211033861. The next prime is 211033913. The reversal of 211033897 is 798330112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209062681 + 1971216 = 14459^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 211033897 - 2⁷ = 211033769 is a prime.

It is not a weakly prime, because it can be changed into another prime (211033397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105516948 + 105516949.

It is an arithmetic number, because the mean of its divisors is an integer number (105516949).

Almost surely, 2^211033897 is an apocalyptic number.

It is an amenable number.

211033897 is a deficient number, since it is larger than the sum of its proper divisors (1).

211033897 is an equidigital number, since it uses as much as digits as its factorization.

211033897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 211033897 is about 14527.0057823352. The cubic root of 211033897 is about 595.3660596112.

The spelling of 211033897 in words is "two hundred eleven million, thirty-three thousand, eight hundred ninety-seven".