33349993 has 2 divisors, whose sum is σ = 33349994. Its totient is φ = 33349992.

The previous prime is 33349973. The next prime is 33349999. The reversal of 33349993 is 39994333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17413929 + 15936064 = 4173^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 33349993 - 2⁵ = 33349961 is a prime.

It is a super-2 number, since 2×33349993² = 2224444066200098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33349999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16674996 + 16674997.

It is an arithmetic number, because the mean of its divisors is an integer number (16674997).

Almost surely, 2^33349993 is an apocalyptic number.

It is an amenable number.

33349993 is a deficient number, since it is larger than the sum of its proper divisors (1).

33349993 is an equidigital number, since it uses as much as digits as its factorization.

33349993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 236196, while the sum is 43.

The square root of 33349993 is about 5774.9452811260. The cubic root of 33349993 is about 321.8834017099.

The spelling of 33349993 in words is "thirty-three million, three hundred forty-nine thousand, nine hundred ninety-three".