33828881 has 2 divisors, whose sum is σ = 33828882. Its totient is φ = 33828880.

The previous prime is 33828869. The next prime is 33828887. The reversal of 33828881 is 18882833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33825856 + 3025 = 5816^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 33828881 - 2¹⁴ = 33812497 is a prime.

It is a super-2 number, since 2×33828881² = 2288786379424322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33828887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16914440 + 16914441.

It is an arithmetic number, because the mean of its divisors is an integer number (16914441).

Almost surely, 2^33828881 is an apocalyptic number.

It is an amenable number.

33828881 is a deficient number, since it is larger than the sum of its proper divisors (1).

33828881 is an equidigital number, since it uses as much as digits as its factorization.

33828881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 41.

The square root of 33828881 is about 5816.2600526455. The cubic root of 33828881 is about 323.4167764469.

The spelling of 33828881 in words is "thirty-three million, eight hundred twenty-eight thousand, eight hundred eighty-one".