33399966 has 8 divisors (see below), whose sum is σ = 66799944. Its totient is φ = 11133320.

The previous prime is 33399923. The next prime is 33399983. The reversal of 33399966 is 66999333.

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

33399966 is an admirable number.

It is a super-2 number, since 2×33399966² = 2231115457602312, which contains 22 as substring.

It is a Curzon number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783325 + ... + 2783336.

It is an arithmetic number, because the mean of its divisors is an integer number (8349993).

Almost surely, 2^33399966 is an apocalyptic number.

33399966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33399966 is a wasteful number, since it uses less digits than its factorization.

33399966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566666.

The product of its digits is 708588, while the sum is 48.

The square root of 33399966 is about 5779.2703691729. The cubic root of 33399966 is about 322.0440959119.

The spelling of 33399966 in words is "thirty-three million, three hundred ninety-nine thousand, nine hundred sixty-six".