3659443 has 2 divisors, whose sum is σ = 3659444. Its totient is φ = 3659442.

The previous prime is 3659441. The next prime is 3659449. The reversal of 3659443 is 3449563.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3659443 - 2¹ = 3659441 is a prime.

Together with 3659441, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3659399 and 3659408.

It is not a weakly prime, because it can be changed into another prime (3659441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1829721 + 1829722.

It is an arithmetic number, because the mean of its divisors is an integer number (1829722).

Almost surely, 2^3659443 is an apocalyptic number.

3659443 is a deficient number, since it is larger than the sum of its proper divisors (1).

3659443 is an equidigital number, since it uses as much as digits as its factorization.

3659443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 3659443 is about 1912.9670671499. The cubic root of 3659443 is about 154.1008363043.

The spelling of 3659443 in words is "three million, six hundred fifty-nine thousand, four hundred forty-three".