3643201 has 2 divisors, whose sum is σ = 3643202. Its totient is φ = 3643200.

The previous prime is 3643181. The next prime is 3643217. The reversal of 3643201 is 1023463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3186225 + 456976 = 1785^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643201 - 2¹⁷ = 3512129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3643271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821600 + 1821601.

It is an arithmetic number, because the mean of its divisors is an integer number (1821601).

Almost surely, 2^3643201 is an apocalyptic number.

It is an amenable number.

3643201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643201 is an equidigital number, since it uses as much as digits as its factorization.

3643201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3643201 is about 1908.7171084265. The cubic root of 3643201 is about 153.8725121312.

Adding to 3643201 its reverse (1023463), we get a palindrome (4666664).

It can be divided in two parts, 3643 and 201, that added together give a square (3844 = 62²).

The spelling of 3643201 in words is "three million, six hundred forty-three thousand, two hundred one".