33906047 has 8 divisors (see below), whose sum is σ = 38952096. Its totient is φ = 28910592.

The previous prime is 33906043. The next prime is 33906083. The reversal of 33906047 is 74060933.

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

It is a cyclic number.

It is not a de Polignac number, because 33906047 - 2² = 33906043 is a prime.

It is a super-2 number, since 2×33906047² = 2299240046332418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33906043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11198 + ... + 13899.

It is an arithmetic number, because the mean of its divisors is an integer number (4869012).

Almost surely, 2^33906047 is an apocalyptic number.

33906047 is a deficient number, since it is larger than the sum of its proper divisors (5046049).

33906047 is a wasteful number, since it uses less digits than its factorization.

33906047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25297.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 33906047 is about 5822.8899182451. The cubic root of 33906047 is about 323.6625016596.

The spelling of 33906047 in words is "thirty-three million, nine hundred six thousand, forty-seven".