8006645 has 8 divisors (see below), whose sum is σ = 10025856. Its totient is φ = 6126736.

The previous prime is 8006641. The next prime is 8006651. The reversal of 8006645 is 5466008.

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 8006645 - 2² = 8006641 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 (8006641) 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, 34697 + ... + 34926.

It is an arithmetic number, because the mean of its divisors is an integer number (1253232).

Almost surely, 2^8006645 is an apocalyptic number.

It is an amenable number.

8006645 is a deficient number, since it is larger than the sum of its proper divisors (2019211).

8006645 is a wasteful number, since it uses less digits than its factorization.

8006645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69651.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8006645 is about 2829.6015620578. The cubic root of 8006645 is about 200.0553596751.

The spelling of 8006645 in words is "eight million, six thousand, six hundred forty-five".