33228893 has 8 divisors (see below), whose sum is σ = 33754488. Its totient is φ = 32707584.

The previous prime is 33228889. The next prime is 33228907. The reversal of 33228893 is 39882233.

It can be written as a sum of positive squares in 4 ways, for example, as 3928324 + 29300569 = 1982^2 + 5413^2 .

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 33228893 - 2² = 33228889 is a prime.

It is a super-2 number, since 2×33228893² = 2208318660010898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33228803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16805 + ... + 18677.

It is an arithmetic number, because the mean of its divisors is an integer number (4219311).

Almost surely, 2^33228893 is an apocalyptic number.

It is an amenable number.

33228893 is a deficient number, since it is larger than the sum of its proper divisors (525595).

33228893 is a wasteful number, since it uses less digits than its factorization.

33228893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

The product of its digits is 62208, while the sum is 38.

The square root of 33228893 is about 5764.4507977777. The cubic root of 33228893 is about 321.4933231007.

The spelling of 33228893 in words is "thirty-three million, two hundred twenty-eight thousand, eight hundred ninety-three".