3904189 has 2 divisors, whose sum is σ = 3904190. Its totient is φ = 3904188.

The previous prime is 3904141. The next prime is 3904217. The reversal of 3904189 is 9814093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 511225 = 1842^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 3904189 - 2¹¹ = 3902141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3904289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952094 + 1952095.

It is an arithmetic number, because the mean of its divisors is an integer number (1952095).

Almost surely, 2^3904189 is an apocalyptic number.

It is an amenable number.

3904189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3904189 is an equidigital number, since it uses as much as digits as its factorization.

3904189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3904189 is about 1975.9020724722. The cubic root of 3904189 is about 157.4624282597.

The spelling of 3904189 in words is "three million, nine hundred four thousand, one hundred eighty-nine".