3849021 has 24 divisors (see below), whose sum is σ = 6424704. Its totient is φ = 2194560.

The previous prime is 3849017. The next prime is 3849023. The reversal of 3849021 is 1209483.

It is not a de Polignac number, because 3849021 - 2² = 3849017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3849023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540 + ... + 2826.

It is an arithmetic number, because the mean of its divisors is an integer number (267696).

Almost surely, 2^3849021 is an apocalyptic number.

It is an amenable number.

3849021 is a deficient number, since it is larger than the sum of its proper divisors (2575683).

3849021 is a wasteful number, since it uses less digits than its factorization.

3849021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3849021 is about 1961.8921988733. The cubic root of 3849021 is about 156.7172348204.

The spelling of 3849021 in words is "three million, eight hundred forty-nine thousand, twenty-one".