71066863 has 8 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 60865080.

The previous prime is 71066839. The next prime is 71066881. The reversal of 71066863 is 36866017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71066863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71066813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7218 + ... + 13936.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2^71066863 is an apocalyptic number.

71066863 is a deficient number, since it is larger than the sum of its proper divisors (10218257).

71066863 is a wasteful number, since it uses less digits than its factorization.

71066863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 71066863 is about 8430.1164286147. The cubic root of 71066863 is about 414.2117189005.

The spelling of 71066863 in words is "seventy-one million, sixty-six thousand, eight hundred sixty-three".