33398 has 4 divisors (see below), whose sum is σ = 50100. Its totient is φ = 16698.

The previous prime is 33391. The next prime is 33403. The reversal of 33398 is 89333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89333 = 157 ⋅569.

It is a super-2 number, since 2×33398² = 2230852808, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁸ + 3⁸ + 3⁹ + 9² + 8³ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8348 + ... + 8351.

It is an arithmetic number, because the mean of its divisors is an integer number (12525).

2³³³⁹⁸ is an apocalyptic number.

33398 is a deficient number, since it is larger than the sum of its proper divisors (16702).

33398 is a wasteful number, since it uses less digits than its factorization.

33398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701.

The product of its digits is 1944, while the sum is 26.

The square root of 33398 is about 182.7511969865. The cubic root of 33398 is about 32.2037777032.

The spelling of 33398 in words is "thirty-three thousand, three hundred ninety-eight".