3205872073 has 2 divisors, whose sum is σ = 3205872074. Its totient is φ = 3205872072.

The previous prime is 3205872029. The next prime is 3205872083. The reversal of 3205872073 is 3702785023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3065615424 + 140256649 = 55368^2 + 11843^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205872073 - 2²¹ = 3203774921 is a prime.

It is not a weakly prime, because it can be changed into another prime (3205872023) 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, 1602936036 + 1602936037.

It is an arithmetic number, because the mean of its divisors is an integer number (1602936037).

Almost surely, 2^3205872073 is an apocalyptic number.

It is an amenable number.

3205872073 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205872073 is an equidigital number, since it uses as much as digits as its factorization.

3205872073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 3205872073 is about 56620.4209892509. The cubic root of 3205872073 is about 1474.5134195844.

The spelling of 3205872073 in words is "three billion, two hundred five million, eight hundred seventy-two thousand, seventy-three".