1065747671 has 2 divisors, whose sum is σ = 1065747672. Its totient is φ = 1065747670.

The previous prime is 1065747649. The next prime is 1065747679. The reversal of 1065747671 is 1767475601.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1065747671 - 2¹⁴ = 1065731287 is a prime.

It is a super-2 number, since 2×1065747671² = 2271636196483848482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065747679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532873835 + 532873836.

It is an arithmetic number, because the mean of its divisors is an integer number (532873836).

Almost surely, 2^1065747671 is an apocalyptic number.

1065747671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065747671 is an equidigital number, since it uses as much as digits as its factorization.

1065747671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 1065747671 is about 32645.7910150757. The cubic root of 1065747671 is about 1021.4523942784.

The spelling of 1065747671 in words is "one billion, sixty-five million, seven hundred forty-seven thousand, six hundred seventy-one".