33404461 has 2 divisors, whose sum is σ = 33404462. Its totient is φ = 33404460.

The previous prime is 33404447. The next prime is 33404477. The reversal of 33404461 is 16440433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17556100 + 15848361 = 4190^2 + 3981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33404461 is a prime.

It is a super-2 number, since 2×33404461² = 2231716029401042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33404401) 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, 16702230 + 16702231.

It is an arithmetic number, because the mean of its divisors is an integer number (16702231).

Almost surely, 2^33404461 is an apocalyptic number.

It is an amenable number.

33404461 is a deficient number, since it is larger than the sum of its proper divisors (1).

33404461 is an equidigital number, since it uses as much as digits as its factorization.

33404461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 33404461 is about 5779.6592460110. The cubic root of 33404461 is about 322.0585422667.

Adding to 33404461 its reverse (16440433), we get a palindrome (49844894).

The spelling of 33404461 in words is "thirty-three million, four hundred four thousand, four hundred sixty-one".