3782021249 has 2 divisors, whose sum is σ = 3782021250. Its totient is φ = 3782021248.

The previous prime is 3782021233. The next prime is 3782021381. The reversal of 3782021249 is 9421202873.

3782021249 is digitally balanced in base 3, 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., 3084691600 + 697329649 = 55540^2 + 26407^2 .

It is an emirp because it is prime and its reverse (9421202873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3782021249 - 2⁴ = 3782021233 is a prime.

It is not a weakly prime, because it can be changed into another prime (3782021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1891010624 + 1891010625.

It is an arithmetic number, because the mean of its divisors is an integer number (1891010625).

Almost surely, 2^3782021249 is an apocalyptic number.

It is an amenable number.

3782021249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3782021249 is an equidigital number, since it uses as much as digits as its factorization.

3782021249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 3782021249 is about 61498.1402076518. The cubic root of 3782021249 is about 1558.0258351419.

The spelling of 3782021249 in words is "three billion, seven hundred eighty-two million, twenty-one thousand, two hundred forty-nine".