8089661 has 4 divisors (see below), whose sum is σ = 8148000. Its totient is φ = 8031324.

The previous prime is 8089639. The next prime is 8089673. The reversal of 8089661 is 1669808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8089661 - 2⁶ = 8089597 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 (8089681) 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, 28961 + ... + 29238.

It is an arithmetic number, because the mean of its divisors is an integer number (2037000).

Almost surely, 2^8089661 is an apocalyptic number.

It is an amenable number.

8089661 is a deficient number, since it is larger than the sum of its proper divisors (58339).

8089661 is a wasteful number, since it uses less digits than its factorization.

8089661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58338.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8089661 is about 2844.2329370148. The cubic root of 8089661 is about 200.7444008990.

The spelling of 8089661 in words is "eight million, eighty-nine thousand, six hundred sixty-one".