8284861 has 4 divisors (see below), whose sum is σ = 8922172. Its totient is φ = 7647552.

The previous prime is 8284849. The next prime is 8284873. The reversal of 8284861 is 1684828.

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

It is an interprime number because it is at equal distance from previous prime (8284849) and next prime (8284873).

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 6579225 = 1306^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 8284861 - 2¹⁵ = 8252093 is a prime.

It is an Ulam number.

It is a Duffinian number.

8284861 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8284861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8284841) 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, 318636 + ... + 318661.

It is an arithmetic number, because the mean of its divisors is an integer number (2230543).

Almost surely, 2^8284861 is an apocalyptic number.

It is an amenable number.

8284861 is a deficient number, since it is larger than the sum of its proper divisors (637311).

8284861 is a wasteful number, since it uses less digits than its factorization.

8284861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637310.

The product of its digits is 24576, while the sum is 37.

The square root of 8284861 is about 2878.3434471932. The cubic root of 8284861 is about 202.3462105210.

The spelling of 8284861 in words is "eight million, two hundred eighty-four thousand, eight hundred sixty-one".