8006649 has 32 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 4410000.

The previous prime is 8006641. The next prime is 8006651. The reversal of 8006649 is 9466008.

It is not a de Polignac number, because 8006649 - 2³ = 8006641 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 31774 + ... + 32024.

It is an arithmetic number, because the mean of its divisors is an integer number (403200).

Almost surely, 2^8006649 is an apocalyptic number.

It is an amenable number.

8006649 is a deficient number, since it is larger than the sum of its proper divisors (4895751).

8006649 is a wasteful number, since it uses less digits than its factorization.

8006649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 8006649 is about 2829.6022688710. The cubic root of 8006649 is about 200.0553929900.

The spelling of 8006649 in words is "eight million, six thousand, six hundred forty-nine".