8363861 has 16 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 7250880.

The previous prime is 8363851. The next prime is 8363867. The reversal of 8363861 is 1683638.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8363861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8363867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50000 + ... + 50166.

It is an arithmetic number, because the mean of its divisors is an integer number (597240).

Almost surely, 2^8363861 is an apocalyptic number.

It is an amenable number.

8363861 is a deficient number, since it is larger than the sum of its proper divisors (1191979).

8363861 is a wasteful number, since it uses less digits than its factorization.

8363861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its digits is 20736, while the sum is 35.

The square root of 8363861 is about 2892.0340592739. The cubic root of 8363861 is about 202.9873320737.

The spelling of 8363861 in words is "eight million, three hundred sixty-three thousand, eight hundred sixty-one".