33449993 has 2 divisors, whose sum is σ = 33449994. Its totient is φ = 33449992.

The previous prime is 33449939. The next prime is 33450031. The reversal of 33449993 is 39994433.

It is a happy number.

Together with previous prime (33449939) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27164944 + 6285049 = 5212^2 + 2507^2 .

It is a cyclic number.

It is not a de Polignac number, because 33449993 - 2⁶ = 33449929 is a prime.

It is a super-2 number, since 2×33449993² = 2237804063400098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33446993) 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, 16724996 + 16724997.

It is an arithmetic number, because the mean of its divisors is an integer number (16724997).

Almost surely, 2^33449993 is an apocalyptic number.

It is an amenable number.

33449993 is a deficient number, since it is larger than the sum of its proper divisors (1).

33449993 is an equidigital number, since it uses as much as digits as its factorization.

33449993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 44.

The square root of 33449993 is about 5783.5968912088. The cubic root of 33449993 is about 322.2048032905.

The spelling of 33449993 in words is "thirty-three million, four hundred forty-nine thousand, nine hundred ninety-three".