8006641 has 2 divisors, whose sum is σ = 8006642. Its totient is φ = 8006640.

The previous prime is 8006633. The next prime is 8006651. The reversal of 8006641 is 1466008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 2876416 = 2265^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 8006641 - 2³ = 8006633 is a prime.

It is not a weakly prime, because it can be changed into another prime (8006611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4003320 + 4003321.

It is an arithmetic number, because the mean of its divisors is an integer number (4003321).

Almost surely, 2^8006641 is an apocalyptic number.

It is an amenable number.

8006641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8006641 is an equidigital number, since it uses as much as digits as its factorization.

8006641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 8006641 is about 2829.6008552444. The cubic root of 8006641 is about 200.0553263602.

The spelling of 8006641 in words is "eight million, six thousand, six hundred forty-one".