33075389 has 2 divisors, whose sum is σ = 33075390. Its totient is φ = 33075388.

The previous prime is 33075281. The next prime is 33075391. The reversal of 33075389 is 98357033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31832164 + 1243225 = 5642^2 + 1115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33075389 is a prime.

Together with 33075391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33075089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16537694 + 16537695.

It is an arithmetic number, because the mean of its divisors is an integer number (16537695).

Almost surely, 2^33075389 is an apocalyptic number.

It is an amenable number.

33075389 is a deficient number, since it is larger than the sum of its proper divisors (1).

33075389 is an equidigital number, since it uses as much as digits as its factorization.

33075389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 33075389 is about 5751.1206733992. The cubic root of 33075389 is about 320.9975025928.

The spelling of 33075389 in words is "thirty-three million, seventy-five thousand, three hundred eighty-nine".