2211747893 has 2 divisors, whose sum is σ = 2211747894. Its totient is φ = 2211747892.

The previous prime is 2211747869. The next prime is 2211747899. The reversal of 2211747893 is 3987471122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1274347204 + 937400689 = 35698^2 + 30617^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211747893 - 2¹⁶ = 2211682357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211747899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105873946 + 1105873947.

It is an arithmetic number, because the mean of its divisors is an integer number (1105873947).

Almost surely, 2^2211747893 is an apocalyptic number.

It is an amenable number.

2211747893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211747893 is an equidigital number, since it uses as much as digits as its factorization.

2211747893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 2211747893 is about 47029.2238188129. The cubic root of 2211747893 is about 1302.9023700039.

The spelling of 2211747893 in words is "two billion, two hundred eleven million, seven hundred forty-seven thousand, eight hundred ninety-three".