3641653 has 2 divisors, whose sum is σ = 3641654. Its totient is φ = 3641652.

The previous prime is 3641647. The next prime is 3641707. The reversal of 3641653 is 3561463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2798929 + 842724 = 1673^2 + 918^2 .

It is a cyclic number.

It is not a de Polignac number, because 3641653 - 2¹⁷ = 3510581 is a prime.

3641653 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3641623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820826 + 1820827.

It is an arithmetic number, because the mean of its divisors is an integer number (1820827).

Almost surely, 2^3641653 is an apocalyptic number.

It is an amenable number.

3641653 is a deficient number, since it is larger than the sum of its proper divisors (1).

3641653 is an equidigital number, since it uses as much as digits as its factorization.

3641653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 3641653 is about 1908.3115573721. The cubic root of 3641653 is about 153.8507155122.

The spelling of 3641653 in words is "three million, six hundred forty-one thousand, six hundred fifty-three".