3622643 has 2 divisors, whose sum is σ = 3622644. Its totient is φ = 3622642.

The previous prime is 3622631. The next prime is 3622679. The reversal of 3622643 is 3462263.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3622643 - 2⁶ = 3622579 is a prime.

It is not a weakly prime, because it can be changed into another prime (3622043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811321 + 1811322.

It is an arithmetic number, because the mean of its divisors is an integer number (1811322).

Almost surely, 2^3622643 is an apocalyptic number.

3622643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3622643 is an equidigital number, since it uses as much as digits as its factorization.

3622643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

The square root of 3622643 is about 1903.3241972927. The cubic root of 3622643 is about 153.5825400392.

The spelling of 3622643 in words is "three million, six hundred twenty-two thousand, six hundred forty-three".