1066235893 has 2 divisors, whose sum is σ = 1066235894. Its totient is φ = 1066235892.

The previous prime is 1066235881. The next prime is 1066235899. The reversal of 1066235893 is 3985326601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699972849 + 366263044 = 26457^2 + 19138^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066235893 - 2¹⁷ = 1066104821 is a prime.

It is a super-2 number, since 2×1066235893² = 2273717959043014898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066235899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533117946 + 533117947.

It is an arithmetic number, because the mean of its divisors is an integer number (533117947).

Almost surely, 2^1066235893 is an apocalyptic number.

It is an amenable number.

1066235893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066235893 is an equidigital number, since it uses as much as digits as its factorization.

1066235893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 1066235893 is about 32653.2677231544. The cubic root of 1066235893 is about 1021.6083472032.

The spelling of 1066235893 in words is "one billion, sixty-six million, two hundred thirty-five thousand, eight hundred ninety-three".