3640201 has 4 divisors (see below), whose sum is σ = 3668992. Its totient is φ = 3611412.

The previous prime is 3640181. The next prime is 3640207. The reversal of 3640201 is 1020463.

3640201 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1020463 = 769 ⋅1327.

It is a cyclic number.

It is not a de Polignac number, because 3640201 - 2⁷ = 3640073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14205 + ... + 14458.

It is an arithmetic number, because the mean of its divisors is an integer number (917248).

Almost surely, 2^3640201 is an apocalyptic number.

It is an amenable number.

3640201 is a deficient number, since it is larger than the sum of its proper divisors (28791).

3640201 is a wasteful number, since it uses less digits than its factorization.

3640201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28790.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3640201 is about 1907.9310784198. The cubic root of 3640201 is about 153.8302650065.

Adding to 3640201 its reverse (1020463), we get a palindrome (4660664).

The spelling of 3640201 in words is "three million, six hundred forty thousand, two hundred one".