33030073 has 2 divisors, whose sum is σ = 33030074. Its totient is φ = 33030072.

The previous prime is 33030007. The next prime is 33030079. The reversal of 33030073 is 37003033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17372224 + 15657849 = 4168^2 + 3957^2 .

It is a cyclic number.

It is not a de Polignac number, because 33030073 - 2¹³ = 33021881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33030073.

It is not a weakly prime, because it can be changed into another prime (33030079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16515036 + 16515037.

It is an arithmetic number, because the mean of its divisors is an integer number (16515037).

Almost surely, 2^33030073 is an apocalyptic number.

It is an amenable number.

33030073 is a deficient number, since it is larger than the sum of its proper divisors (1).

33030073 is an equidigital number, since it uses as much as digits as its factorization.

33030073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 19.

The square root of 33030073 is about 5747.1795691452. The cubic root of 33030073 is about 320.8508379423.

It can be divided in two parts, 330 and 30073, that added together give a palindrome (30403).

The spelling of 33030073 in words is "thirty-three million, thirty thousand, seventy-three".