33930649 has 4 divisors (see below), whose sum is σ = 34339536. Its totient is φ = 33521764.

The previous prime is 33930643. The next prime is 33930661. The reversal of 33930649 is 94603933.

33930649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33930649 is a prime.

It is a super-4 number, since 4×33930649⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33930643) 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, 204319 + ... + 204484.

It is an arithmetic number, because the mean of its divisors is an integer number (8584884).

Almost surely, 2^33930649 is an apocalyptic number.

It is an amenable number.

33930649 is a deficient number, since it is larger than the sum of its proper divisors (408887).

33930649 is an equidigital number, since it uses as much as digits as its factorization.

33930649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408886.

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 33930649 is about 5825.0020600855. The cubic root of 33930649 is about 323.7407651794.

The spelling of 33930649 in words is "thirty-three million, nine hundred thirty thousand, six hundred forty-nine".