33474809 has 2 divisors, whose sum is σ = 33474810. Its totient is φ = 33474808.

The previous prime is 33474803. The next prime is 33474817. The reversal of 33474809 is 90847433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27457600 + 6017209 = 5240^2 + 2453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33474809 is a prime.

It is a super-2 number, since 2×33474809² = 2241125675172962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33474803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16737404 + 16737405.

It is an arithmetic number, because the mean of its divisors is an integer number (16737405).

Almost surely, 2^33474809 is an apocalyptic number.

It is an amenable number.

33474809 is a deficient number, since it is larger than the sum of its proper divisors (1).

33474809 is an equidigital number, since it uses as much as digits as its factorization.

33474809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 33474809 is about 5785.7418711864. The cubic root of 33474809 is about 322.2844630769.

The spelling of 33474809 in words is "thirty-three million, four hundred seventy-four thousand, eight hundred nine".