8476661 has 4 divisors (see below), whose sum is σ = 8636652. Its totient is φ = 8316672.

The previous prime is 8476649. The next prime is 8476667. The reversal of 8476661 is 1666748.

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 6599761 + 1876900 = 2569^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 8476661 - 2¹⁰ = 8475637 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 (8476667) 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, 79916 + ... + 80021.

It is an arithmetic number, because the mean of its divisors is an integer number (2159163).

Almost surely, 2^8476661 is an apocalyptic number.

It is an amenable number.

8476661 is a deficient number, since it is larger than the sum of its proper divisors (159991).

8476661 is a wasteful number, since it uses less digits than its factorization.

8476661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159990.

The product of its digits is 48384, while the sum is 38.

The square root of 8476661 is about 2911.4705906122. The cubic root of 8476661 is about 203.8957961342.

The spelling of 8476661 in words is "eight million, four hundred seventy-six thousand, six hundred sixty-one".