33306641 has 2 divisors, whose sum is σ = 33306642. Its totient is φ = 33306640.

The previous prime is 33306607. The next prime is 33306661. The reversal of 33306641 is 14660333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 6225025 = 5204^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 33306641 - 2⁶ = 33306577 is a prime.

It is a super-2 number, since 2×33306641² = 2218664669405762, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33306641.

It is not a weakly prime, because it can be changed into another prime (33306661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16653320 + 16653321.

It is an arithmetic number, because the mean of its divisors is an integer number (16653321).

Almost surely, 2^33306641 is an apocalyptic number.

It is an amenable number.

33306641 is a deficient number, since it is larger than the sum of its proper divisors (1).

33306641 is an equidigital number, since it uses as much as digits as its factorization.

33306641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33306641 is about 5771.1906050658. The cubic root of 33306641 is about 321.7438680470.

Adding to 33306641 its reverse (14660333), we get a palindrome (47966974).

The spelling of 33306641 in words is "thirty-three million, three hundred six thousand, six hundred forty-one".