8920171063 has 4 divisors (see below), whose sum is σ = 8924920240. Its totient is φ = 8915421888.

The previous prime is 8920171033. The next prime is 8920171087. The reversal of 8920171063 is 3601710298.

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 8920171063 - 2³³ = 330236471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8920171033) 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, 2371770 + ... + 2375527.

It is an arithmetic number, because the mean of its divisors is an integer number (2231230060).

Almost surely, 2^8920171063 is an apocalyptic number.

8920171063 is a deficient number, since it is larger than the sum of its proper divisors (4749177).

8920171063 is a wasteful number, since it uses less digits than its factorization.

8920171063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749176.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 8920171063 is about 94446.6572357116. The cubic root of 8920171063 is about 2073.9155169521.

The spelling of 8920171063 in words is "eight billion, nine hundred twenty million, one hundred seventy-one thousand, sixty-three".