8787397171 has 4 divisors (see below), whose sum is σ = 10042739632. Its totient is φ = 7532054712.

The previous prime is 8787397141. The next prime is 8787397187. The reversal of 8787397171 is 1717937878.

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

It is not a de Polignac number, because 8787397171 - 2¹⁵ = 8787364403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8787397141) 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, 627671220 + ... + 627671233.

It is an arithmetic number, because the mean of its divisors is an integer number (2510684908).

Almost surely, 2^8787397171 is an apocalyptic number.

8787397171 is a deficient number, since it is larger than the sum of its proper divisors (1255342461).

8787397171 is a wasteful number, since it uses less digits than its factorization.

8787397171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255342460.

The product of its digits is 4148928, while the sum is 58.

The square root of 8787397171 is about 93741.1178245705. The cubic root of 8787397171 is about 2063.5741805138.

The spelling of 8787397171 in words is "eight billion, seven hundred eighty-seven million, three hundred ninety-seven thousand, one hundred seventy-one".