33664047 has 8 divisors (see below), whose sum is σ = 46333440. Its totient is φ = 21718680.

The previous prime is 33664039. The next prime is 33664049. The reversal of 33664047 is 74046633.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33664047 - 2³ = 33664039 is a prime.

It is a super-2 number, since 2×33664047² = 2266536120836418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33663999 and 33664017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33664049) 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 in 7 ways as a sum of consecutive naturals, for example, 180897 + ... + 181082.

It is an arithmetic number, because the mean of its divisors is an integer number (5791680).

Almost surely, 2^33664047 is an apocalyptic number.

33664047 is a deficient number, since it is larger than the sum of its proper divisors (12669393).

33664047 is a wasteful number, since it uses less digits than its factorization.

33664047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362013.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 33664047 is about 5802.0726469082. The cubic root of 33664047 is about 322.8906293558.

The spelling of 33664047 in words is "thirty-three million, six hundred sixty-four thousand, forty-seven".