33450289 has 2 divisors, whose sum is σ = 33450290. Its totient is φ = 33450288.

The previous prime is 33450281. The next prime is 33450293. The reversal of 33450289 is 98205433.

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., 17514225 + 15936064 = 4185^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 33450289 - 2³ = 33450281 is a prime.

It is a super-2 number, since 2×33450289² = 2237843668367042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33450281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16725144 + 16725145.

It is an arithmetic number, because the mean of its divisors is an integer number (16725145).

Almost surely, 2^33450289 is an apocalyptic number.

It is an amenable number.

33450289 is a deficient number, since it is larger than the sum of its proper divisors (1).

33450289 is an equidigital number, since it uses as much as digits as its factorization.

33450289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 33450289 is about 5783.6224807641. The cubic root of 33450289 is about 322.2057536878.

The spelling of 33450289 in words is "thirty-three million, four hundred fifty thousand, two hundred eighty-nine".