3877221 has 8 divisors (see below), whose sum is σ = 5254624. Its totient is φ = 2542320.

The previous prime is 3877219. The next prime is 3877243. The reversal of 3877221 is 1227783.

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

It is not a de Polignac number, because 3877221 - 2¹ = 3877219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872221) 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, 10411 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (656828).

Almost surely, 2^3877221 is an apocalyptic number.

It is an amenable number.

3877221 is a deficient number, since it is larger than the sum of its proper divisors (1377403).

3877221 is a wasteful number, since it uses less digits than its factorization.

3877221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21251.

The product of its digits is 4704, while the sum is 30.

The square root of 3877221 is about 1969.0660222552. The cubic root of 3877221 is about 157.0990355179.

The spelling of 3877221 in words is "three million, eight hundred seventy-seven thousand, two hundred twenty-one".