1066235447 has 2 divisors, whose sum is σ = 1066235448. Its totient is φ = 1066235446.

The previous prime is 1066235413. The next prime is 1066235477. The reversal of 1066235447 is 7445326601.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7445326601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066235447 - 2¹⁸ = 1065973303 is a prime.

It is a super-2 number, since 2×1066235447² = 2273716056878579618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066235447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066235477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533117723 + 533117724.

It is an arithmetic number, because the mean of its divisors is an integer number (533117724).

Almost surely, 2^1066235447 is an apocalyptic number.

1066235447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066235447 is an equidigital number, since it uses as much as digits as its factorization.

1066235447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 1066235447 is about 32653.2608938219. The cubic root of 1066235447 is about 1021.6082047590.

The spelling of 1066235447 in words is "one billion, sixty-six million, two hundred thirty-five thousand, four hundred forty-seven".