3653841 has 4 divisors (see below), whose sum is σ = 4871792. Its totient is φ = 2435892.

The previous prime is 3653831. The next prime is 3653851. The reversal of 3653841 is 1483563.

3653841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1483563 = 3 ⋅494521.

It is an interprime number because it is at equal distance from previous prime (3653831) and next prime (3653851).

It is not a de Polignac number, because 3653841 - 2⁵ = 3653809 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3653799 and 3653808.

It is not an unprimeable number, because it can be changed into a prime (3653821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608971 + ... + 608976.

It is an arithmetic number, because the mean of its divisors is an integer number (1217948).

Almost surely, 2^3653841 is an apocalyptic number.

It is an amenable number.

3653841 is a deficient number, since it is larger than the sum of its proper divisors (1217951).

3653841 is a wasteful number, since it uses less digits than its factorization.

3653841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217950.

The product of its digits is 8640, while the sum is 30.

The square root of 3653841 is about 1911.5022887771. The cubic root of 3653841 is about 154.0221618749.

The spelling of 3653841 in words is "three million, six hundred fifty-three thousand, eight hundred forty-one".