33396745 has 4 divisors (see below), whose sum is σ = 40076100. Its totient is φ = 26717392.

The previous prime is 33396709. The next prime is 33396749. The reversal of 33396745 is 54769333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54769333 = 181 ⋅302593.

It can be written as a sum of positive squares in 2 ways, for example, as 8874441 + 24522304 = 2979^2 + 4952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33396745 is a prime.

It is a super-2 number, since 2×33396745² = 2230685153190050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33396698 and 33396707.

It is not an unprimeable number, because it can be changed into a prime (33396749) 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 in 3 ways as a sum of consecutive naturals, for example, 3339670 + ... + 3339679.

It is an arithmetic number, because the mean of its divisors is an integer number (10019025).

Almost surely, 2^33396745 is an apocalyptic number.

It is an amenable number.

33396745 is a deficient number, since it is larger than the sum of its proper divisors (6679355).

33396745 is an equidigital number, since it uses as much as digits as its factorization.

33396745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679354.

The product of its digits is 204120, while the sum is 40.

The square root of 33396745 is about 5778.9916940587. The cubic root of 33396745 is about 322.0337432329.

The spelling of 33396745 in words is "thirty-three million, three hundred ninety-six thousand, seven hundred forty-five".