871099967 has 4 divisors (see below), whose sum is σ = 875912856. Its totient is φ = 866287080.

The previous prime is 871099963. The next prime is 871099979. The reversal of 871099967 is 769990178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769990178 = 2 ⋅384995089.

It is a cyclic number.

It is not a de Polignac number, because 871099967 - 2² = 871099963 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 (871099963) 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, 2406173 + ... + 2406534.

It is an arithmetic number, because the mean of its divisors is an integer number (218978214).

Almost surely, 2^871099967 is an apocalyptic number.

871099967 is a deficient number, since it is larger than the sum of its proper divisors (4812889).

871099967 is a wasteful number, since it uses less digits than its factorization.

871099967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812888.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 871099967 is about 29514.4027044425. The cubic root of 871099967 is about 955.0424282384.

The spelling of 871099967 in words is "eight hundred seventy-one million, ninety-nine thousand, nine hundred sixty-seven".