3780839 has 2 divisors, whose sum is σ = 3780840. Its totient is φ = 3780838.

The previous prime is 3780823. The next prime is 3780857. The reversal of 3780839 is 9380873.

It is a weak prime.

It is an emirp because it is prime and its reverse (9380873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3780839 - 2⁴ = 3780823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3780869) 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, 1890419 + 1890420.

It is an arithmetic number, because the mean of its divisors is an integer number (1890420).

Almost surely, 2^3780839 is an apocalyptic number.

3780839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3780839 is an equidigital number, since it uses as much as digits as its factorization.

3780839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3780839 is about 1944.4379650686. The cubic root of 3780839 is about 155.7863473420.

The spelling of 3780839 in words is "three million, seven hundred eighty thousand, eight hundred thirty-nine".