33216897 has 8 divisors (see below), whose sum is σ = 50616256. Its totient is φ = 18981072.

The previous prime is 33216877. The next prime is 33216901. The reversal of 33216897 is 79861233.

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

It is not a de Polignac number, because 33216897 - 2²² = 29022593 is a prime.

It is a super-2 number, since 2×33216897² = 2206724492617218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33216817) 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, 790858 + ... + 790899.

It is an arithmetic number, because the mean of its divisors is an integer number (6327032).

Almost surely, 2^33216897 is an apocalyptic number.

It is an amenable number.

33216897 is a deficient number, since it is larger than the sum of its proper divisors (17399359).

33216897 is a wasteful number, since it uses less digits than its factorization.

33216897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581767.

The product of its digits is 54432, while the sum is 39.

The square root of 33216897 is about 5763.4101884214. The cubic root of 33216897 is about 321.4546308890.

The spelling of 33216897 in words is "thirty-three million, two hundred sixteen thousand, eight hundred ninety-seven".