33672913 has 8 divisors (see below), whose sum is σ = 35568896. Its totient is φ = 31827600.

The previous prime is 33672887. The next prime is 33672917. The reversal of 33672913 is 31927633.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33672913 is a prime.

It is a super-2 number, since 2×33672913² = 2267730139811138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33672917) 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, 11298 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (4446112).

Almost surely, 2^33672913 is an apocalyptic number.

It is an amenable number.

33672913 is a deficient number, since it is larger than the sum of its proper divisors (1895983).

33672913 is a wasteful number, since it uses less digits than its factorization.

33672913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25335.

The product of its digits is 20412, while the sum is 34.

The square root of 33672913 is about 5802.8366339231. The cubic root of 33672913 is about 322.9189731161.

The spelling of 33672913 in words is "thirty-three million, six hundred seventy-two thousand, nine hundred thirteen".