8032861 has 4 divisors (see below), whose sum is σ = 8115772. Its totient is φ = 7949952.

The previous prime is 8032859. The next prime is 8032879. The reversal of 8032861 is 1682308.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4756761 + 3276100 = 2181^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 8032861 - 2¹ = 8032859 is a prime.

It is a Duffinian number.

8032861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41310 + ... + 41503.

It is an arithmetic number, because the mean of its divisors is an integer number (2028943).

Almost surely, 2^8032861 is an apocalyptic number.

It is an amenable number.

8032861 is a deficient number, since it is larger than the sum of its proper divisors (82911).

8032861 is an equidigital number, since it uses as much as digits as its factorization.

8032861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82910.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8032861 is about 2834.2302305917. The cubic root of 8032861 is about 200.2734675737.

The spelling of 8032861 in words is "eight million, thirty-two thousand, eight hundred sixty-one".