33798561 has 4 divisors (see below), whose sum is σ = 45064752. Its totient is φ = 22532372.

The previous prime is 33798553. The next prime is 33798571. The reversal of 33798561 is 16589733.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16589733 = 3 ⋅5529911.

It is a cyclic number.

It is not a de Polignac number, because 33798561 - 2³ = 33798553 is a prime.

It is a super-2 number, since 2×33798561² = 2284685451341442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33798521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633091 + ... + 5633096.

It is an arithmetic number, because the mean of its divisors is an integer number (11266188).

Almost surely, 2^33798561 is an apocalyptic number.

It is an amenable number.

33798561 is a deficient number, since it is larger than the sum of its proper divisors (11266191).

33798561 is a wasteful number, since it uses less digits than its factorization.

33798561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266190.

The product of its digits is 136080, while the sum is 42.

The square root of 33798561 is about 5813.6529824199. The cubic root of 33798561 is about 323.3201240456.

The spelling of 33798561 in words is "thirty-three million, seven hundred ninety-eight thousand, five hundred sixty-one".