3637201 has 4 divisors (see below), whose sum is σ = 3851172. Its totient is φ = 3423232.

The previous prime is 3637187. The next prime is 3637217. The reversal of 3637201 is 1027363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1027363 = 137 ⋅7499.

It can be written as a sum of positive squares in 2 ways, for example, as 1537600 + 2099601 = 1240^2 + 1449^2 .

It is a cyclic number.

It is not a de Polignac number, because 3637201 - 2⁵ = 3637169 is a prime.

It is a super-2 number, since 2×3637201² = 26458462228802, which contains 22 as substring.

It is a Duffinian number.

3637201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3637301) 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, 106960 + ... + 106993.

It is an arithmetic number, because the mean of its divisors is an integer number (962793).

Almost surely, 2^3637201 is an apocalyptic number.

It is an amenable number.

3637201 is a deficient number, since it is larger than the sum of its proper divisors (213971).

3637201 is a wasteful number, since it uses less digits than its factorization.

3637201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213970.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 3637201 is about 1907.1447244507. The cubic root of 3637201 is about 153.7879946640.

The spelling of 3637201 in words is "three million, six hundred thirty-seven thousand, two hundred one".