8369861 has 16 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 7471728.

The previous prime is 8369849. The next prime is 8369869. The reversal of 8369861 is 1689638.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8369861 - 2¹⁰ = 8368837 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 (8369869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46670 + ... + 46848.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^8369861 is an apocalyptic number.

It is an amenable number.

8369861 is a deficient number, since it is larger than the sum of its proper divisors (961339).

8369861 is a wasteful number, since it uses less digits than its factorization.

8369861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

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

The square root of 8369861 is about 2893.0712054839. The cubic root of 8369861 is about 203.0358596167.

The spelling of 8369861 in words is "eight million, three hundred sixty-nine thousand, eight hundred sixty-one".