8681897 has 4 divisors (see below), whose sum is σ = 9922176. Its totient is φ = 7441620.

The previous prime is 8681857. The next prime is 8681899. The reversal of 8681897 is 7981868.

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 8681897 - 2²⁰ = 7633321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8681899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620129 + ... + 620142.

It is an arithmetic number, because the mean of its divisors is an integer number (2480544).

Almost surely, 2^8681897 is an apocalyptic number.

It is an amenable number.

8681897 is a deficient number, since it is larger than the sum of its proper divisors (1240279).

8681897 is a wasteful number, since it uses less digits than its factorization.

8681897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240278.

The product of its digits is 193536, while the sum is 47.

The square root of 8681897 is about 2946.5058968208. The cubic root of 8681897 is about 205.5282588323.

The spelling of 8681897 in words is "eight million, six hundred eighty-one thousand, eight hundred ninety-seven".