3842549 has 2 divisors, whose sum is σ = 3842550. Its totient is φ = 3842548.

The previous prime is 3842539. The next prime is 3842551. The reversal of 3842549 is 9452483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3724900 + 117649 = 1930^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 3842549 - 2¹⁶ = 3777013 is a prime.

Together with 3842551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3842519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921274 + 1921275.

It is an arithmetic number, because the mean of its divisors is an integer number (1921275).

Almost surely, 2^3842549 is an apocalyptic number.

It is an amenable number.

3842549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3842549 is an equidigital number, since it uses as much as digits as its factorization.

3842549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 3842549 is about 1960.2420768874. The cubic root of 3842549 is about 156.6293472801.

The spelling of 3842549 in words is "three million, eight hundred forty-two thousand, five hundred forty-nine".