3784921339 has 2 divisors, whose sum is σ = 3784921340. Its totient is φ = 3784921338.

The previous prime is 3784921333. The next prime is 3784921367. The reversal of 3784921339 is 9331294873.

It is a weak prime.

It is an emirp because it is prime and its reverse (9331294873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3784921339 - 2¹¹ = 3784919291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3784921292 and 3784921301.

It is not a weakly prime, because it can be changed into another prime (3784921333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892460669 + 1892460670.

It is an arithmetic number, because the mean of its divisors is an integer number (1892460670).

Almost surely, 2^3784921339 is an apocalyptic number.

3784921339 is a deficient number, since it is larger than the sum of its proper divisors (1).

3784921339 is an equidigital number, since it uses as much as digits as its factorization.

3784921339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 3784921339 is about 61521.7143698060. The cubic root of 3784921339 is about 1558.4239697563.

The spelling of 3784921339 in words is "three billion, seven hundred eighty-four million, nine hundred twenty-one thousand, three hundred thirty-nine".