33302989 has 2 divisors, whose sum is σ = 33302990. Its totient is φ = 33302988.

The previous prime is 33302981. The next prime is 33303013. The reversal of 33302989 is 98920333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32114889 + 1188100 = 5667^2 + 1090^2 .

It is an emirp because it is prime and its reverse (98920333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33302989 - 2³ = 33302981 is a prime.

It is a super-2 number, since 2×33302989² = 2218178152668242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33302981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16651494 + 16651495.

It is an arithmetic number, because the mean of its divisors is an integer number (16651495).

Almost surely, 2^33302989 is an apocalyptic number.

It is an amenable number.

33302989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33302989 is an equidigital number, since it uses as much as digits as its factorization.

33302989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 33302989 is about 5770.8741972079. The cubic root of 33302989 is about 321.7321081144.

The spelling of 33302989 in words is "thirty-three million, three hundred two thousand, nine hundred eighty-nine".