3205949 has 2 divisors, whose sum is σ = 3205950. Its totient is φ = 3205948.

The previous prime is 3205919. The next prime is 3205957. The reversal of 3205949 is 9495023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 1849 = 1790^2 + 43^2 .

It is an emirp because it is prime and its reverse (9495023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3205949 - 2¹⁶ = 3140413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3205919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602974 + 1602975.

It is an arithmetic number, because the mean of its divisors is an integer number (1602975).

Almost surely, 2^3205949 is an apocalyptic number.

It is an amenable number.

3205949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205949 is an equidigital number, since it uses as much as digits as its factorization.

3205949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3205949 is about 1790.5164059567. The cubic root of 3205949 is about 147.4525213462.

The spelling of 3205949 in words is "three million, two hundred five thousand, nine hundred forty-nine".