33009973 has 8 divisors (see below), whose sum is σ = 35107520. Its totient is φ = 30948480.

The previous prime is 33009941. The next prime is 33009979. The reversal of 33009973 is 37990033.

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 33009973 - 2⁵ = 33009941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33009979) 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, 7113 + ... + 10798.

It is an arithmetic number, because the mean of its divisors is an integer number (4388440).

Almost surely, 2^33009973 is an apocalyptic number.

It is an amenable number.

33009973 is a deficient number, since it is larger than the sum of its proper divisors (2097547).

33009973 is a wasteful number, since it uses less digits than its factorization.

33009973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18027.

The product of its (nonzero) digits is 15309, while the sum is 34.

The square root of 33009973 is about 5745.4306191964. The cubic root of 33009973 is about 320.7857416036.

The spelling of 33009973 in words is "thirty-three million, nine thousand, nine hundred seventy-three".