3652643 has 2 divisors, whose sum is σ = 3652644. Its totient is φ = 3652642.

The previous prime is 3652633. The next prime is 3652661. The reversal of 3652643 is 3462563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3652643 - 2⁸ = 3652387 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 6 + 5⁹ + 2⁷ + 6⁸ + 4 + 3⁹ .

It is not a weakly prime, because it can be changed into another prime (3652613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1826321 + 1826322.

It is an arithmetic number, because the mean of its divisors is an integer number (1826322).

Almost surely, 2^3652643 is an apocalyptic number.

3652643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3652643 is an equidigital number, since it uses as much as digits as its factorization.

3652643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 29.

The square root of 3652643 is about 1911.1888969958. The cubic root of 3652643 is about 154.0053267399.

The spelling of 3652643 in words is "three million, six hundred fifty-two thousand, six hundred forty-three".