3243637 has 2 divisors, whose sum is σ = 3243638. Its totient is φ = 3243636.

The previous prime is 3243629. The next prime is 3243649. The reversal of 3243637 is 7363423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3243601 + 36 = 1801^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243637 - 2³ = 3243629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3243677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621818 + 1621819.

It is an arithmetic number, because the mean of its divisors is an integer number (1621819).

Almost surely, 2^3243637 is an apocalyptic number.

It is an amenable number.

3243637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243637 is an equidigital number, since it uses as much as digits as its factorization.

3243637 is an evil number, because the sum of its binary digits is even.

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

The square root of 3243637 is about 1801.0099944198. The cubic root of 3243637 is about 148.0280717387.

The spelling of 3243637 in words is "three million, two hundred forty-three thousand, six hundred thirty-seven".