3636443 has 2 divisors, whose sum is σ = 3636444. Its totient is φ = 3636442.

The previous prime is 3636439. The next prime is 3636463. The reversal of 3636443 is 3446363.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3636443 - 2² = 3636439 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3636403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1818221 + 1818222.

It is an arithmetic number, because the mean of its divisors is an integer number (1818222).

Almost surely, 2^3636443 is an apocalyptic number.

3636443 is a deficient number, since it is larger than the sum of its proper divisors (1).

3636443 is an equidigital number, since it uses as much as digits as its factorization.

3636443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 29.

The square root of 3636443 is about 1906.9459876987. The cubic root of 3636443 is about 153.7773106794. Note that the first 3 decimals are identical.

The spelling of 3636443 in words is "three million, six hundred thirty-six thousand, four hundred forty-three".