211473893 has 2 divisors, whose sum is σ = 211473894. Its totient is φ = 211473892.

The previous prime is 211473883. The next prime is 211473929. The reversal of 211473893 is 398374112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 103999204 = 10367^2 + 10198^2 .

It is a cyclic number.

It is not a de Polignac number, because 211473893 - 2¹⁶ = 211408357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211473803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105736946 + 105736947.

It is an arithmetic number, because the mean of its divisors is an integer number (105736947).

Almost surely, 2^211473893 is an apocalyptic number.

It is an amenable number.

211473893 is a deficient number, since it is larger than the sum of its proper divisors (1).

211473893 is an equidigital number, since it uses as much as digits as its factorization.

211473893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 211473893 is about 14542.1419673994. The cubic root of 211473893 is about 595.7795426927.

The spelling of 211473893 in words is "two hundred eleven million, four hundred seventy-three thousand, eight hundred ninety-three".