33944881 has 2 divisors, whose sum is σ = 33944882. Its totient is φ = 33944880.

The previous prime is 33944879. The next prime is 33944893. The reversal of 33944881 is 18844933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33825856 + 119025 = 5816^2 + 345^2 .

It is an emirp because it is prime and its reverse (18844933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33944881 - 2¹ = 33944879 is a prime.

It is a super-2 number, since 2×33944881² = 2304509892208322, which contains 22 as substring.

Together with 33944879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33944821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16972440 + 16972441.

It is an arithmetic number, because the mean of its divisors is an integer number (16972441).

Almost surely, 2^33944881 is an apocalyptic number.

It is an amenable number.

33944881 is a deficient number, since it is larger than the sum of its proper divisors (1).

33944881 is an equidigital number, since it uses as much as digits as its factorization.

33944881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 33944881 is about 5826.2235624802. The cubic root of 33944881 is about 323.7860225368.

The spelling of 33944881 in words is "thirty-three million, nine hundred forty-four thousand, eight hundred eighty-one".