8396891 has 4 divisors (see below), whose sum is σ = 8623872. Its totient is φ = 8169912.

The previous prime is 8396881. The next prime is 8396951. The reversal of 8396891 is 1986938.

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

It is a cyclic number.

It is not a de Polignac number, because 8396891 - 2¹⁰ = 8395867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8396881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113435 + ... + 113508.

It is an arithmetic number, because the mean of its divisors is an integer number (2155968).

Almost surely, 2^8396891 is an apocalyptic number.

8396891 is a deficient number, since it is larger than the sum of its proper divisors (226981).

8396891 is a wasteful number, since it uses less digits than its factorization.

8396891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226980.

The product of its digits is 93312, while the sum is 44.

The square root of 8396891 is about 2897.7389461440. The cubic root of 8396891 is about 203.2541890915.

The spelling of 8396891 in words is "eight million, three hundred ninety-six thousand, eight hundred ninety-one".