33890117 has 2 divisors, whose sum is σ = 33890118. Its totient is φ = 33890116.

The previous prime is 33890033. The next prime is 33890123. The reversal of 33890117 is 71109833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30813601 + 3076516 = 5551^2 + 1754^2 .

It is an emirp because it is prime and its reverse (71109833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33890117 - 2⁸ = 33889861 is a prime.

It is a super-2 number, since 2×33890117² = 2297080060547378, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33890137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16945058 + 16945059.

It is an arithmetic number, because the mean of its divisors is an integer number (16945059).

Almost surely, 2^33890117 is an apocalyptic number.

It is an amenable number.

33890117 is a deficient number, since it is larger than the sum of its proper divisors (1).

33890117 is an equidigital number, since it uses as much as digits as its factorization.

33890117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 33890117 is about 5821.5218800585. The cubic root of 33890117 is about 323.6118051832.

The spelling of 33890117 in words is "thirty-three million, eight hundred ninety thousand, one hundred seventeen".