8182661 has 8 divisors (see below), whose sum is σ = 8898840. Its totient is φ = 7492608.

The previous prime is 8182649. The next prime is 8182663. The reversal of 8182661 is 1662818.

It can be written as a sum of positive squares in 4 ways, for example, as 2660161 + 5522500 = 1631^2 + 2350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8182661 - 2¹⁰ = 8181637 is a prime.

It is a super-3 number, since 3×8182661³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8182663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5876 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (1112355).

Almost surely, 2^8182661 is an apocalyptic number.

It is an amenable number.

8182661 is a deficient number, since it is larger than the sum of its proper divisors (716179).

8182661 is a wasteful number, since it uses less digits than its factorization.

8182661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13063.

The product of its digits is 4608, while the sum is 32.

The square root of 8182661 is about 2860.5350898040. The cubic root of 8182661 is about 201.5107346706.

The spelling of 8182661 in words is "eight million, one hundred eighty-two thousand, six hundred sixty-one".