3868549 has 2 divisors, whose sum is σ = 3868550. Its totient is φ = 3868548.

The previous prime is 3868541. The next prime is 3868567. The reversal of 3868549 is 9458683.

3868549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 66049 = 1950^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 3868549 - 2³ = 3868541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3868541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934274 + 1934275.

It is an arithmetic number, because the mean of its divisors is an integer number (1934275).

Almost surely, 2^3868549 is an apocalyptic number.

It is an amenable number.

3868549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3868549 is an equidigital number, since it uses as much as digits as its factorization.

3868549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 3868549 is about 1966.8627303399. The cubic root of 3868549 is about 156.9818227160.

The spelling of 3868549 in words is "three million, eight hundred sixty-eight thousand, five hundred forty-nine".