3640801 has 2 divisors, whose sum is σ = 3640802. Its totient is φ = 3640800.

The previous prime is 3640789. The next prime is 3640807. The reversal of 3640801 is 1080463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2719201 + 921600 = 1649^2 + 960^2 .

It is an emirp because it is prime and its reverse (1080463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3640801 - 2⁹ = 3640289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3640807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820400 + 1820401.

It is an arithmetic number, because the mean of its divisors is an integer number (1820401).

Almost surely, 2^3640801 is an apocalyptic number.

It is an amenable number.

3640801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640801 is an equidigital number, since it uses as much as digits as its factorization.

3640801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3640801 is about 1908.0883103253. The cubic root of 3640801 is about 153.8387162879.

The spelling of 3640801 in words is "three million, six hundred forty thousand, eight hundred one".