33342889 has 2 divisors, whose sum is σ = 33342890. Its totient is φ = 33342888.

The previous prime is 33342821. The next prime is 33342901. The reversal of 33342889 is 98824333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 14784025 = 4308^2 + 3845^2 .

It is an emirp because it is prime and its reverse (98824333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33342889 - 2⁷ = 33342761 is a prime.

It is a super-2 number, since 2×33342889² = 2223496493732642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33342689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16671444 + 16671445.

It is an arithmetic number, because the mean of its divisors is an integer number (16671445).

Almost surely, 2^33342889 is an apocalyptic number.

It is an amenable number.

33342889 is a deficient number, since it is larger than the sum of its proper divisors (1).

33342889 is an equidigital number, since it uses as much as digits as its factorization.

33342889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 33342889 is about 5774.3301776050. The cubic root of 33342889 is about 321.8605449128.

The spelling of 33342889 in words is "thirty-three million, three hundred forty-two thousand, eight hundred eighty-nine".