71062643 has 2 divisors, whose sum is σ = 71062644. Its totient is φ = 71062642.

The previous prime is 71062639. The next prime is 71062657. The reversal of 71062643 is 34626017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71062643 - 2² = 71062639 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71062843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35531321 + 35531322.

It is an arithmetic number, because the mean of its divisors is an integer number (35531322).

Almost surely, 2^71062643 is an apocalyptic number.

71062643 is a deficient number, since it is larger than the sum of its proper divisors (1).

71062643 is an equidigital number, since it uses as much as digits as its factorization.

71062643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 71062643 is about 8429.8661317959. The cubic root of 71062643 is about 414.2035200110.

The spelling of 71062643 in words is "seventy-one million, sixty-two thousand, six hundred forty-three".