3784849 has 2 divisors, whose sum is σ = 3784850. Its totient is φ = 3784848.

The previous prime is 3784813. The next prime is 3784861. The reversal of 3784849 is 9484873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3448449 + 336400 = 1857^2 + 580^2 .

It is an emirp because it is prime and its reverse (9484873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3784849 - 2¹⁵ = 3752081 is a prime.

It is not a weakly prime, because it can be changed into another prime (3781849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892424 + 1892425.

It is an arithmetic number, because the mean of its divisors is an integer number (1892425).

Almost surely, 2^3784849 is an apocalyptic number.

It is an amenable number.

3784849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3784849 is an equidigital number, since it uses as much as digits as its factorization.

3784849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 3784849 is about 1945.4688380953. The cubic root of 3784849 is about 155.8414041276.

The spelling of 3784849 in words is "three million, seven hundred eighty-four thousand, eight hundred forty-nine".