8396861 has 16 divisors (see below), whose sum is σ = 9834048. Its totient is φ = 7084800.

The previous prime is 8396849. The next prime is 8396873. The reversal of 8396861 is 1686938.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8396849) and next prime (8396873).

It is a cyclic number.

It is not a de Polignac number, because 8396861 - 2⁶ = 8396797 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 15251 + ... + 15791.

It is an arithmetic number, because the mean of its divisors is an integer number (614628).

Almost surely, 2^8396861 is an apocalyptic number.

It is an amenable number.

8396861 is a deficient number, since it is larger than the sum of its proper divisors (1437187).

8396861 is a wasteful number, since it uses less digits than its factorization.

8396861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652.

The product of its digits is 62208, while the sum is 41.

The square root of 8396861 is about 2897.7337696897. The cubic root of 8396861 is about 203.2539470323.

The spelling of 8396861 in words is "eight million, three hundred ninety-six thousand, eight hundred sixty-one".