3780871 has 2 divisors, whose sum is σ = 3780872. Its totient is φ = 3780870.

The previous prime is 3780869. The next prime is 3780893. The reversal of 3780871 is 1780873.

It is a happy number.

3780871 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 is an emirp because it is prime and its reverse (1780873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3780871 - 2¹ = 3780869 is a prime.

Together with 3780869, it forms a pair of twin primes.

3780871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3780811) 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, 1890435 + 1890436.

It is an arithmetic number, because the mean of its divisors is an integer number (1890436).

Almost surely, 2^3780871 is an apocalyptic number.

3780871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3780871 is an equidigital number, since it uses as much as digits as its factorization.

3780871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 3780871 is about 1944.4461936500. The cubic root of 3780871 is about 155.7867868519.

It can be divided in two parts, 37 and 80871, that added together give a palindrome (80908).

The spelling of 3780871 in words is "three million, seven hundred eighty thousand, eight hundred seventy-one".