8663427071 has 4 divisors (see below), whose sum is σ = 9329844552. Its totient is φ = 7997009592.

The previous prime is 8663427067. The next prime is 8663427077. The reversal of 8663427071 is 1707243668.

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

It is not a de Polignac number, because 8663427071 - 2² = 8663427067 is a prime.

It is a super-2 number, since 2×8663427071² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8663427077) 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, 333208721 + ... + 333208746.

It is an arithmetic number, because the mean of its divisors is an integer number (2332461138).

Almost surely, 2^8663427071 is an apocalyptic number.

8663427071 is a deficient number, since it is larger than the sum of its proper divisors (666417481).

8663427071 is a wasteful number, since it uses less digits than its factorization.

8663427071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666417480.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 8663427071 is about 93077.5325790279. The cubic root of 8663427071 is about 2053.8240793214.

The spelling of 8663427071 in words is "eight billion, six hundred sixty-three million, four hundred twenty-seven thousand, seventy-one".