8317661 has 12 divisors (see below), whose sum is σ = 9322236. Its totient is φ = 7413120.

The previous prime is 8317657. The next prime is 8317663. The reversal of 8317661 is 1667138.

It can be written as a sum of positive squares in 2 ways, for example, as 7562500 + 755161 = 2750^2 + 869^2 .

It is not a de Polignac number, because 8317661 - 2² = 8317657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8317663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5765 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (776853).

Almost surely, 2^8317661 is an apocalyptic number.

It is an amenable number.

8317661 is a deficient number, since it is larger than the sum of its proper divisors (1004575).

8317661 is a wasteful number, since it uses less digits than its factorization.

8317661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1361 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 8317661 is about 2884.0355406964. The cubic root of 8317661 is about 202.6128903638.

The spelling of 8317661 in words is "eight million, three hundred seventeen thousand, six hundred sixty-one".