868511897 has 8 divisors (see below), whose sum is σ = 970576992. Its totient is φ = 770298400.

The previous prime is 868511887. The next prime is 868511933. The reversal of 868511897 is 798115868.

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 868511897 - 2¹⁰ = 868510873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868511887) 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, 962423 + ... + 963324.

It is an arithmetic number, because the mean of its divisors is an integer number (121322124).

Almost surely, 2^868511897 is an apocalyptic number.

It is an amenable number.

868511897 is a deficient number, since it is larger than the sum of its proper divisors (102065095).

868511897 is a wasteful number, since it uses less digits than its factorization.

868511897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925799.

The product of its digits is 967680, while the sum is 53.

The square root of 868511897 is about 29470.5259030103. The cubic root of 868511897 is about 954.0956679533.

The spelling of 868511897 in words is "eight hundred sixty-eight million, five hundred eleven thousand, eight hundred ninety-seven".