733336661 has 2 divisors, whose sum is σ = 733336662. Its totient is φ = 733336660.

The previous prime is 733336649. The next prime is 733336679. The reversal of 733336661 is 166633337.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703840900 + 29495761 = 26530^2 + 5431^2 .

It is a cyclic number.

It is not a de Polignac number, because 733336661 - 2¹⁰ = 733335637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (733336561) 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, 366668330 + 366668331.

It is an arithmetic number, because the mean of its divisors is an integer number (366668331).

Almost surely, 2^733336661 is an apocalyptic number.

It is an amenable number.

733336661 is a deficient number, since it is larger than the sum of its proper divisors (1).

733336661 is an equidigital number, since it uses as much as digits as its factorization.

733336661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 38.

The square root of 733336661 is about 27080.1894565012. The cubic root of 733336661 is about 901.7811070065.

Adding to 733336661 its reverse (166633337), we get a palindrome (899969998).

The spelling of 733336661 in words is "seven hundred thirty-three million, three hundred thirty-six thousand, six hundred sixty-one".