1066313447 has 2 divisors, whose sum is σ = 1066313448. Its totient is φ = 1066313446.

The previous prime is 1066313387. The next prime is 1066313453. The reversal of 1066313447 is 7443136601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066313447 - 2⁸ = 1066313191 is a prime.

It is a super-2 number, since 2×1066313447² = 2274048734506043618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066313467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533156723 + 533156724.

It is an arithmetic number, because the mean of its divisors is an integer number (533156724).

Almost surely, 2^1066313447 is an apocalyptic number.

1066313447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066313447 is an equidigital number, since it uses as much as digits as its factorization.

1066313447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1066313447 is about 32654.4552396759. The cubic root of 1066313447 is about 1021.6331159225.

The spelling of 1066313447 in words is "one billion, sixty-six million, three hundred thirteen thousand, four hundred forty-seven".