8971613771 has 4 divisors (see below), whose sum is σ = 9006523032. Its totient is φ = 8936704512.

The previous prime is 8971613767. The next prime is 8971613789. The reversal of 8971613771 is 1773161798.

8971613771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1773161798 = 2 ⋅886580899.

It is a cyclic number.

It is not a de Polignac number, because 8971613771 - 2² = 8971613767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8971613741) 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, 17454245 + ... + 17454758.

It is an arithmetic number, because the mean of its divisors is an integer number (2251630758).

Almost surely, 2^8971613771 is an apocalyptic number.

8971613771 is a deficient number, since it is larger than the sum of its proper divisors (34909261).

8971613771 is a wasteful number, since it uses less digits than its factorization.

8971613771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34909260.

The product of its digits is 444528, while the sum is 50.

The square root of 8971613771 is about 94718.6030883057. The cubic root of 8971613771 is about 2077.8946407558.

The spelling of 8971613771 in words is "eight billion, nine hundred seventy-one million, six hundred thirteen thousand, seven hundred seventy-one".