3768643 has 2 divisors, whose sum is σ = 3768644. Its totient is φ = 3768642.

The previous prime is 3768617. The next prime is 3768673. The reversal of 3768643 is 3468673.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3768643 is a prime.

It is a super-2 number, since 2×3768643² = 28405340122898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3768673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1884321 + 1884322.

It is an arithmetic number, because the mean of its divisors is an integer number (1884322).

Almost surely, 2^3768643 is an apocalyptic number.

3768643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3768643 is an equidigital number, since it uses as much as digits as its factorization.

3768643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 3768643 is about 1941.2993071652. The cubic root of 3768643 is about 155.6186582041.

The spelling of 3768643 in words is "three million, seven hundred sixty-eight thousand, six hundred forty-three".