897868867 has 4 divisors (see below), whose sum is σ = 1026135856. Its totient is φ = 769601880.

The previous prime is 897868847. The next prime is 897868879. The reversal of 897868867 is 768868798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897868867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897868847) 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, 64133484 + ... + 64133497.

It is an arithmetic number, because the mean of its divisors is an integer number (256533964).

Almost surely, 2^897868867 is an apocalyptic number.

897868867 is a deficient number, since it is larger than the sum of its proper divisors (128266989).

897868867 is a wasteful number, since it uses less digits than its factorization.

897868867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128266988.

The product of its digits is 65028096, while the sum is 67.

The square root of 897868867 is about 29964.4600652173. The cubic root of 897868867 is about 964.7267133097.

The spelling of 897868867 in words is "eight hundred ninety-seven million, eight hundred sixty-eight thousand, eight hundred sixty-seven".