8306661 has 16 divisors (see below), whose sum is σ = 12169728. Its totient is φ = 4998000.

The previous prime is 8306653. The next prime is 8306677. The reversal of 8306661 is 1666038.

It is not a de Polignac number, because 8306661 - 2³ = 8306653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8306621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4150 + ... + 5816.

It is an arithmetic number, because the mean of its divisors is an integer number (760608).

Almost surely, 2^8306661 is an apocalyptic number.

It is an amenable number.

8306661 is a deficient number, since it is larger than the sum of its proper divisors (3863067).

8306661 is a wasteful number, since it uses less digits than its factorization.

8306661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 8306661 is about 2882.1278597592. The cubic root of 8306661 is about 202.5235333113.

The spelling of 8306661 in words is "eight million, three hundred six thousand, six hundred sixty-one".