868560881 has 4 divisors (see below), whose sum is σ = 871185264. Its totient is φ = 865936500.

The previous prime is 868560877. The next prime is 868560911. The reversal of 868560881 is 188065868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868560881 - 2² = 868560877 is a prime.

It is a super-2 number, since 2×868560881² = 1508796008006992322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868560841) 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, 1311695 + ... + 1312356.

It is an arithmetic number, because the mean of its divisors is an integer number (217796316).

Almost surely, 2^868560881 is an apocalyptic number.

It is an amenable number.

868560881 is a deficient number, since it is larger than the sum of its proper divisors (2624383).

868560881 is a wasteful number, since it uses less digits than its factorization.

868560881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624382.

The product of its (nonzero) digits is 737280, while the sum is 50.

The square root of 868560881 is about 29471.3569589186. The cubic root of 868560881 is about 954.1136045887.

The spelling of 868560881 in words is "eight hundred sixty-eight million, five hundred sixty thousand, eight hundred eighty-one".