33213806 has 8 divisors (see below), whose sum is σ = 50074200. Its totient is φ = 16522408.

The previous prime is 33213797. The next prime is 33213823. The reversal of 33213806 is 60831233.

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

It is a super-2 number, since 2×33213806² = 2206313818011272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41756 + ... + 42543.

It is an arithmetic number, because the mean of its divisors is an integer number (6259275).

Almost surely, 2^33213806 is an apocalyptic number.

33213806 is a deficient number, since it is larger than the sum of its proper divisors (16860394).

33213806 is a wasteful number, since it uses less digits than its factorization.

33213806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84498.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 33213806 is about 5763.1420249721. The cubic root of 33213806 is about 321.4446595875. Note that the first 3 decimals are identical.

The spelling of 33213806 in words is "thirty-three million, two hundred thirteen thousand, eight hundred six".