3644513 has 2 divisors, whose sum is σ = 3644514. Its totient is φ = 3644512.

The previous prime is 3644503. The next prime is 3644569. The reversal of 3644513 is 3154463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 23104 = 1903^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 3644513 - 2⁴ = 3644497 is a prime.

It is not a weakly prime, because it can be changed into another prime (3644503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822256 + 1822257.

It is an arithmetic number, because the mean of its divisors is an integer number (1822257).

Almost surely, 2^3644513 is an apocalyptic number.

It is an amenable number.

3644513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644513 is an equidigital number, since it uses as much as digits as its factorization.

3644513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 3644513 is about 1909.0607638313. The cubic root of 3644513 is about 153.8909809180.

Adding to 3644513 its reverse (3154463), we get a palindrome (6798976).

The spelling of 3644513 in words is "three million, six hundred forty-four thousand, five hundred thirteen".