3827021 has 8 divisors (see below), whose sum is σ = 4288224. Its totient is φ = 3384720.

The previous prime is 3827003. The next prime is 3827029. The reversal of 3827021 is 1207283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3827021 - 2¹⁴ = 3810637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3827029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4295 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (536028).

Almost surely, 2^3827021 is an apocalyptic number.

It is an amenable number.

3827021 is a deficient number, since it is larger than the sum of its proper divisors (461203).

3827021 is a wasteful number, since it uses less digits than its factorization.

3827021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3827021 is about 1956.2773320774. The cubic root of 3827021 is about 156.4180791846.

The spelling of 3827021 in words is "three million, eight hundred twenty-seven thousand, twenty-one".