3643799 has 2 divisors, whose sum is σ = 3643800. Its totient is φ = 3643798.

The previous prime is 3643751. The next prime is 3643807. The reversal of 3643799 is 9973463.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3643799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3643099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821899 + 1821900.

It is an arithmetic number, because the mean of its divisors is an integer number (1821900).

Almost surely, 2^3643799 is an apocalyptic number.

3643799 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643799 is an equidigital number, since it uses as much as digits as its factorization.

3643799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 3643799 is about 1908.8737517185. The cubic root of 3643799 is about 153.8809306189.

The spelling of 3643799 in words is "three million, six hundred forty-three thousand, seven hundred ninety-nine".