3789221 has 2 divisors, whose sum is σ = 3789222. Its totient is φ = 3789220.

The previous prime is 3789197. The next prime is 3789239. The reversal of 3789221 is 1229873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3568321 + 220900 = 1889^2 + 470^2 .

It is an emirp because it is prime and its reverse (1229873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3789221 - 2¹⁸ = 3527077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3789241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1894610 + 1894611.

It is an arithmetic number, because the mean of its divisors is an integer number (1894611).

Almost surely, 2^3789221 is an apocalyptic number.

It is an amenable number.

3789221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3789221 is an equidigital number, since it uses as much as digits as its factorization.

3789221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 3789221 is about 1946.5921504003. The cubic root of 3789221 is about 155.9013868325.

The spelling of 3789221 in words is "three million, seven hundred eighty-nine thousand, two hundred twenty-one".