3738781 has 2 divisors, whose sum is σ = 3738782. Its totient is φ = 3738780.

The previous prime is 3738769. The next prime is 3738829. The reversal of 3738781 is 1878373.

3738781 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., 2805625 + 933156 = 1675^2 + 966^2 .

It is a cyclic number.

It is not a de Polignac number, because 3738781 - 2¹⁹ = 3214493 is a prime.

It is a super-2 number, since 2×3738781² = 27956966731922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3738781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3738701) 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, 1869390 + 1869391.

It is an arithmetic number, because the mean of its divisors is an integer number (1869391).

Almost surely, 2^3738781 is an apocalyptic number.

It is an amenable number.

3738781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3738781 is an equidigital number, since it uses as much as digits as its factorization.

3738781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 3738781 is about 1933.5927699492. The cubic root of 3738781 is about 155.2065370161.

The spelling of 3738781 in words is "three million, seven hundred thirty-eight thousand, seven hundred eighty-one".