870888871 has 4 divisors (see below), whose sum is σ = 881381592. Its totient is φ = 860396152.

The previous prime is 870888857. The next prime is 870888877. The reversal of 870888871 is 178888078.

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 870888871 - 2⁵ = 870888839 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 (870888877) 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, 5246236 + ... + 5246401.

It is an arithmetic number, because the mean of its divisors is an integer number (220345398).

Almost surely, 2^870888871 is an apocalyptic number.

870888871 is a deficient number, since it is larger than the sum of its proper divisors (10492721).

870888871 is a wasteful number, since it uses less digits than its factorization.

870888871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10492720.

The product of its (nonzero) digits is 1605632, while the sum is 55.

The square root of 870888871 is about 29510.8263354315. The cubic root of 870888871 is about 954.9652760051.

It can be divided in two parts, 87088 and 8871, that added together give a palindrome (95959).

The spelling of 870888871 in words is "eight hundred seventy million, eight hundred eighty-eight thousand, eight hundred seventy-one".