8146861 has 4 divisors (see below), whose sum is σ = 8188000. Its totient is φ = 8105724.

The previous prime is 8146843. The next prime is 8146867. The reversal of 8146861 is 1686418.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1686418 = 2 ⋅843209.

It is a cyclic number.

It is not a de Polignac number, because 8146861 - 2⁵ = 8146829 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 (8146867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20271 + ... + 20668.

It is an arithmetic number, because the mean of its divisors is an integer number (2047000).

Almost surely, 2^8146861 is an apocalyptic number.

It is an amenable number.

8146861 is a deficient number, since it is larger than the sum of its proper divisors (41139).

8146861 is a wasteful number, since it uses less digits than its factorization.

8146861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41138.

The product of its digits is 9216, while the sum is 34.

The square root of 8146861 is about 2854.2706599060. The cubic root of 8146861 is about 201.2164281795.

The spelling of 8146861 in words is "eight million, one hundred forty-six thousand, eight hundred sixty-one".