868971081 has 8 divisors (see below), whose sum is σ = 1263957984. Its totient is φ = 526649120.

The previous prime is 868971079. The next prime is 868971143. The reversal of 868971081 is 180179868.

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 868971081 - 2¹ = 868971079 is a prime.

It is a super-2 number, since 2×868971081² = 1510221479228617122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 868971081.

It is not an unprimeable number, because it can be changed into a prime (868971001) 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, 13166196 + ... + 13166261.

It is an arithmetic number, because the mean of its divisors is an integer number (157994748).

Almost surely, 2^868971081 is an apocalyptic number.

It is an amenable number.

868971081 is a deficient number, since it is larger than the sum of its proper divisors (394986903).

868971081 is a wasteful number, since it uses less digits than its factorization.

868971081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26332471.

The product of its (nonzero) digits is 193536, while the sum is 48.

The square root of 868971081 is about 29478.3154369445. The cubic root of 868971081 is about 954.2637824337.

It can be divided in two parts, 86897 and 1081, that added together give a palindrome (87978).

The spelling of 868971081 in words is "eight hundred sixty-eight million, nine hundred seventy-one thousand, eighty-one".