33554993 has 2 divisors, whose sum is σ = 33554994. Its totient is φ = 33554992.

The previous prime is 33554977. The next prime is 33555019. The reversal of 33554993 is 39945533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23493409 + 10061584 = 4847^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 33554993 - 2⁴ = 33554977 is a prime.

It is a super-2 number, since 2×33554993² = 2251875110460098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33554993.

It is not a weakly prime, because it can be changed into another prime (33554903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16777496 + 16777497.

It is an arithmetic number, because the mean of its divisors is an integer number (16777497).

Almost surely, 2^33554993 is an apocalyptic number.

It is an amenable number.

33554993 is a deficient number, since it is larger than the sum of its proper divisors (1).

33554993 is an equidigital number, since it uses as much as digits as its factorization.

33554993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 41.

The square root of 33554993 is about 5792.6671749722. The cubic root of 33554993 is about 322.5415862884.

The spelling of 33554993 in words is "thirty-three million, five hundred fifty-four thousand, nine hundred ninety-three".