33366689 has 2 divisors, whose sum is σ = 33366690. Its totient is φ = 33366688.

The previous prime is 33366653. The next prime is 33366701. The reversal of 33366689 is 98666333.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17430625 + 15936064 = 4175^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 33366689 - 2¹⁶ = 33301153 is a prime.

It is a super-2 number, since 2×33366689² = 2226671869645442, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (33366089) 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, 16683344 + 16683345.

It is an arithmetic number, because the mean of its divisors is an integer number (16683345).

Almost surely, 2^33366689 is an apocalyptic number.

It is an amenable number.

33366689 is a deficient number, since it is larger than the sum of its proper divisors (1).

33366689 is an equidigital number, since it uses as much as digits as its factorization.

33366689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 44.

The square root of 33366689 is about 5776.3906550717. The cubic root of 33366689 is about 321.9371075552.

The spelling of 33366689 in words is "thirty-three million, three hundred sixty-six thousand, six hundred eighty-nine".