3803861 has 2 divisors, whose sum is σ = 3803862. Its totient is φ = 3803860.

The previous prime is 3803831. The next prime is 3803867. The reversal of 3803861 is 1683083.

3803861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3724900 + 78961 = 1930^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 3803861 - 2⁶ = 3803797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3803867) 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, 1901930 + 1901931.

It is an arithmetic number, because the mean of its divisors is an integer number (1901931).

Almost surely, 2^3803861 is an apocalyptic number.

It is an amenable number.

3803861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3803861 is an equidigital number, since it uses as much as digits as its factorization.

3803861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3803861 is about 1950.3489431381. The cubic root of 3803861 is about 156.1019085388.

It can be divided in two parts, 3803 and 861, that added together give a palindrome (4664).

The spelling of 3803861 in words is "three million, eight hundred three thousand, eight hundred sixty-one".