3803641 has 4 divisors (see below), whose sum is σ = 3849552. Its totient is φ = 3757732.

The previous prime is 3803623. The next prime is 3803647. The reversal of 3803641 is 1463083.

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: 1463083 = 157 ⋅9319.

It is a cyclic number.

It is not a de Polignac number, because 3803641 - 2⁵ = 3803609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3803647) 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, 22831 + ... + 22996.

It is an arithmetic number, because the mean of its divisors is an integer number (962388).

Almost surely, 2^3803641 is an apocalyptic number.

It is an amenable number.

3803641 is a deficient number, since it is larger than the sum of its proper divisors (45911).

3803641 is an equidigital number, since it uses as much as digits as its factorization.

3803641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45910.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 3803641 is about 1950.2925421587. The cubic root of 3803641 is about 156.0988990455.

It can be divided in two parts, 3803 and 641, that added together give a palindrome (4444).

The spelling of 3803641 in words is "three million, eight hundred three thousand, six hundred forty-one".