3237643 has 2 divisors, whose sum is σ = 3237644. Its totient is φ = 3237642.

The previous prime is 3237631. The next prime is 3237653. The reversal of 3237643 is 3467323.

3237643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3467323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3237643 is a prime.

It is not a weakly prime, because it can be changed into another prime (3237653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1618821 + 1618822.

It is an arithmetic number, because the mean of its divisors is an integer number (1618822).

Almost surely, 2^3237643 is an apocalyptic number.

3237643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3237643 is an equidigital number, since it uses as much as digits as its factorization.

3237643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 28.

The square root of 3237643 is about 1799.3451586619. The cubic root of 3237643 is about 147.9368338920.

It can be divided in two parts, 32 and 37643, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 3237643 in words is "three million, two hundred thirty-seven thousand, six hundred forty-three".