871899087 has 8 divisors (see below), whose sum is σ = 1200033280. Its totient is φ = 562515480.

The previous prime is 871899059. The next prime is 871899103. The reversal of 871899087 is 780998178.

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

It is not a de Polignac number, because 871899087 - 2⁷ = 871898959 is a prime.

It is a super-2 number, since 2×871899087² = 1520416035822867138, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871899187) 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, 4687537 + ... + 4687722.

It is an arithmetic number, because the mean of its divisors is an integer number (150004160).

Almost surely, 2^871899087 is an apocalyptic number.

871899087 is a deficient number, since it is larger than the sum of its proper divisors (328134193).

871899087 is a wasteful number, since it uses less digits than its factorization.

871899087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375293.

The product of its (nonzero) digits is 2032128, while the sum is 57.

The square root of 871899087 is about 29527.9373983352. The cubic root of 871899087 is about 955.3343810477.

Subtracting from 871899087 its reverse (780998178), we obtain a palindrome (90900909).

The spelling of 871899087 in words is "eight hundred seventy-one million, eight hundred ninety-nine thousand, eighty-seven".