33228851 has 4 divisors (see below), whose sum is σ = 33724872. Its totient is φ = 32732832.

The previous prime is 33228847. The next prime is 33228857. The reversal of 33228851 is 15882233.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33228851 - 2² = 33228847 is a prime.

It is a super-2 number, since 2×33228851² = 2208313077560402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33228857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247910 + ... + 248043.

It is an arithmetic number, because the mean of its divisors is an integer number (8431218).

Almost surely, 2^33228851 is an apocalyptic number.

33228851 is a deficient number, since it is larger than the sum of its proper divisors (496021).

33228851 is an equidigital number, since it uses as much as digits as its factorization.

33228851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496020.

The product of its digits is 11520, while the sum is 32.

The square root of 33228851 is about 5764.4471547582. The cubic root of 33228851 is about 321.4931876491.

The spelling of 33228851 in words is "thirty-three million, two hundred twenty-eight thousand, eight hundred fifty-one".