71066743 has 4 divisors (see below), whose sum is σ = 77527368. Its totient is φ = 64606120.

The previous prime is 71066713. The next prime is 71066777. The reversal of 71066743 is 34766017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71066743 - 2¹³ = 71058551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71066699 and 71066708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71066713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230296 + ... + 3230317.

It is an arithmetic number, because the mean of its divisors is an integer number (19381842).

Almost surely, 2^71066743 is an apocalyptic number.

71066743 is a deficient number, since it is larger than the sum of its proper divisors (6460625).

71066743 is a wasteful number, since it uses less digits than its factorization.

71066743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460624.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 71066743 is about 8430.1093112723. The cubic root of 71066743 is about 414.2114857612.

The spelling of 71066743 in words is "seventy-one million, sixty-six thousand, seven hundred forty-three".