3643537 has 2 divisors, whose sum is σ = 3643538. Its totient is φ = 3643536.

The previous prime is 3643529. The next prime is 3643561. The reversal of 3643537 is 7353463.

3643537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3530641 + 112896 = 1879^2 + 336^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643537 - 2³ = 3643529 is a prime.

It is a d-powerful number, because it can be written as 3² + 6⁸ + 4⁶ + 3⁴ + 5⁹ + 3⁸ + 7² .

It is a junction number, because it is equal to n+sod(n) for n = 3643499 and 3643508.

It is not a weakly prime, because it can be changed into another prime (3643517) 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, 1821768 + 1821769.

It is an arithmetic number, because the mean of its divisors is an integer number (1821769).

Almost surely, 2^3643537 is an apocalyptic number.

It is an amenable number.

3643537 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643537 is an equidigital number, since it uses as much as digits as its factorization.

3643537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 31.

The square root of 3643537 is about 1908.8051236310. The cubic root of 3643537 is about 153.8772423648.

The spelling of 3643537 in words is "three million, six hundred forty-three thousand, five hundred thirty-seven".