868879871 has 8 divisors (see below), whose sum is σ = 882572544. Its totient is φ = 855287200.

The previous prime is 868879853. The next prime is 868879903. The reversal of 868879871 is 178978868.

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

It is a cyclic number.

It is not a de Polignac number, because 868879871 - 2⁶ = 868879807 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 (868879471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7391 + ... + 42336.

It is an arithmetic number, because the mean of its divisors is an integer number (110321568).

Almost surely, 2^868879871 is an apocalyptic number.

868879871 is a deficient number, since it is larger than the sum of its proper divisors (13692673).

868879871 is a wasteful number, since it uses less digits than its factorization.

868879871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50001.

The product of its digits is 10838016, while the sum is 62.

The square root of 868879871 is about 29476.7683269384. The cubic root of 868879871 is about 954.2303937334.

The spelling of 868879871 in words is "eight hundred sixty-eight million, eight hundred seventy-nine thousand, eight hundred seventy-one".