3876321 has 16 divisors (see below), whose sum is σ = 5350400. Its totient is φ = 2494800.

The previous prime is 3876319. The next prime is 3876329. The reversal of 3876321 is 1236783.

It is not a de Polignac number, because 3876321 - 2¹ = 3876319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3876329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19380 + ... + 19578.

It is an arithmetic number, because the mean of its divisors is an integer number (334400).

Almost surely, 2^3876321 is an apocalyptic number.

It is an amenable number.

3876321 is a deficient number, since it is larger than the sum of its proper divisors (1474079).

3876321 is a wasteful number, since it uses less digits than its factorization.

3876321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 6048, while the sum is 30.

The square root of 3876321 is about 1968.8374742472. The cubic root of 3876321 is about 157.0868790384.

The spelling of 3876321 in words is "three million, eight hundred seventy-six thousand, three hundred twenty-one".