3962681209 has 2 divisors, whose sum is σ = 3962681210. Its totient is φ = 3962681208.

The previous prime is 3962681197. The next prime is 3962681221. The reversal of 3962681209 is 9021862693.

It is a balanced prime because it is at equal distance from previous prime (3962681197) and next prime (3962681221).

It can be written as a sum of positive squares in only one way, i.e., 3632713984 + 329967225 = 60272^2 + 18165^2 .

It is a cyclic number.

It is not a de Polignac number, because 3962681209 - 2²¹ = 3960584057 is a prime.

It is not a weakly prime, because it can be changed into another prime (3962681309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981340604 + 1981340605.

It is an arithmetic number, because the mean of its divisors is an integer number (1981340605).

Almost surely, 2^3962681209 is an apocalyptic number.

It is an amenable number.

3962681209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3962681209 is an equidigital number, since it uses as much as digits as its factorization.

3962681209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 3962681209 is about 62949.8308893678. The cubic root of 3962681209 is about 1582.4489620473.

The spelling of 3962681209 in words is "three billion, nine hundred sixty-two million, six hundred eighty-one thousand, two hundred nine".