3865201 has 4 divisors (see below), whose sum is σ = 3874804. Its totient is φ = 3855600.

The previous prime is 3865187. The next prime is 3865229. The reversal of 3865201 is 1025683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1025683 = 619 ⋅1657.

It can be written as a sum of positive squares in 2 ways, for example, as 893025 + 2972176 = 945^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 3865201 - 2¹⁹ = 3340913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3865231) 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, 4170 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (968701).

Almost surely, 2^3865201 is an apocalyptic number.

It is an amenable number.

3865201 is a deficient number, since it is larger than the sum of its proper divisors (9603).

3865201 is an equidigital number, since it uses as much as digits as its factorization.

3865201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3865201 is about 1966.0114445242. The cubic root of 3865201 is about 156.9365234894.

The spelling of 3865201 in words is "three million, eight hundred sixty-five thousand, two hundred one".