3206642249 has 2 divisors, whose sum is σ = 3206642250. Its totient is φ = 3206642248.

The previous prime is 3206642237. The next prime is 3206642251. The reversal of 3206642249 is 9422466023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3146424649 + 60217600 = 56093^2 + 7760^2 .

It is a cyclic number.

It is not a de Polignac number, because 3206642249 - 2¹⁶ = 3206576713 is a prime.

Together with 3206642251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3206642269) 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, 1603321124 + 1603321125.

It is an arithmetic number, because the mean of its divisors is an integer number (1603321125).

Almost surely, 2^3206642249 is an apocalyptic number.

It is an amenable number.

3206642249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3206642249 is an equidigital number, since it uses as much as digits as its factorization.

3206642249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 3206642249 is about 56627.2218018861. The cubic root of 3206642249 is about 1474.6314887496.

The spelling of 3206642249 in words is "three billion, two hundred six million, six hundred forty-two thousand, two hundred forty-nine".