33398165 has 8 divisors (see below), whose sum is σ = 40120920. Its totient is φ = 26689792.

The previous prime is 33398159. The next prime is 33398203. The reversal of 33398165 is 56189333.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 33258289 = 374^2 + 5767^2 .

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 33398165 - 2¹⁰ = 33397141 is a prime.

It is a super-2 number, since 2×33398165² = 2230874850734450, 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 7 ways as a sum of consecutive naturals, for example, 2441 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (5015115).

Almost surely, 2^33398165 is an apocalyptic number.

It is an amenable number.

33398165 is a deficient number, since it is larger than the sum of its proper divisors (6722755).

33398165 is a wasteful number, since it uses less digits than its factorization.

33398165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191.

The product of its digits is 58320, while the sum is 38.

The square root of 33398165 is about 5779.1145515555. The cubic root of 33398165 is about 322.0383073646.

The spelling of 33398165 in words is "thirty-three million, three hundred ninety-eight thousand, one hundred sixty-five".