3806321 has 2 divisors, whose sum is σ = 3806322. Its totient is φ = 3806320.

The previous prime is 3806303. The next prime is 3806333. The reversal of 3806321 is 1236083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 215296 = 1895^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 3806321 - 2¹⁴ = 3789937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3806021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1903160 + 1903161.

It is an arithmetic number, because the mean of its divisors is an integer number (1903161).

Almost surely, 2^3806321 is an apocalyptic number.

It is an amenable number.

3806321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3806321 is an equidigital number, since it uses as much as digits as its factorization.

3806321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3806321 is about 1950.9794975858. The cubic root of 3806321 is about 156.1355522448.

The spelling of 3806321 in words is "three million, eight hundred six thousand, three hundred twenty-one".