33268993 has 2 divisors, whose sum is σ = 33268994. Its totient is φ = 33268992.

The previous prime is 33268931. The next prime is 33269009. The reversal of 33268993 is 39986233.

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., 30283009 + 2985984 = 5503^2 + 1728^2 .

It is a cyclic number.

It is not a de Polignac number, because 33268993 - 2¹⁷ = 33137921 is a prime.

It is a super-2 number, since 2×33268993² = 2213651790468098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33268913) 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, 16634496 + 16634497.

It is an arithmetic number, because the mean of its divisors is an integer number (16634497).

Almost surely, 2^33268993 is an apocalyptic number.

It is an amenable number.

33268993 is a deficient number, since it is larger than the sum of its proper divisors (1).

33268993 is an equidigital number, since it uses as much as digits as its factorization.

33268993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 33268993 is about 5767.9279641826. The cubic root of 33268993 is about 321.6225951355.

The spelling of 33268993 in words is "thirty-three million, two hundred sixty-eight thousand, nine hundred ninety-three".