33336989 has 8 divisors (see below), whose sum is σ = 38668608. Its totient is φ = 28147680.

The previous prime is 33336971. The next prime is 33336991. The reversal of 33336989 is 98963333.

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 33336989 - 2²⁰ = 32288413 is a prime.

It is a super-2 number, since 2×33336989² = 2222709671172242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33336929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35072 + ... + 36009.

It is an arithmetic number, because the mean of its divisors is an integer number (4833576).

Almost surely, 2^33336989 is an apocalyptic number.

It is an amenable number.

33336989 is a deficient number, since it is larger than the sum of its proper divisors (5331619).

33336989 is an equidigital number, since it uses as much as digits as its factorization.

33336989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71155.

The product of its digits is 314928, while the sum is 44.

The square root of 33336989 is about 5773.8192732367. The cubic root of 33336989 is about 321.8415594630.

The spelling of 33336989 in words is "thirty-three million, three hundred thirty-six thousand, nine hundred eighty-nine".