3651443 has 2 divisors, whose sum is σ = 3651444. Its totient is φ = 3651442.

The previous prime is 3651409. The next prime is 3651449. The reversal of 3651443 is 3441563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3651443 - 2¹⁰ = 3650419 is a prime.

It is not a weakly prime, because it can be changed into another prime (3651449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825721 + 1825722.

It is an arithmetic number, because the mean of its divisors is an integer number (1825722).

Almost surely, 2^3651443 is an apocalyptic number.

3651443 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651443 is an equidigital number, since it uses as much as digits as its factorization.

3651443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 3651443 is about 1910.8749304965. The cubic root of 3651443 is about 153.9884598088.

The spelling of 3651443 in words is "three million, six hundred fifty-one thousand, four hundred forty-three".