333981841 has 2 divisors, whose sum is σ = 333981842. Its totient is φ = 333981840.

The previous prime is 333981839. The next prime is 333981887. The reversal of 333981841 is 148189333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205635600 + 128346241 = 14340^2 + 11329^2 .

It is a cyclic number.

It is not a de Polignac number, because 333981841 - 2¹ = 333981839 is a prime.

It is a super-2 number, since 2×333981841² = 223087740235498562, which contains 22 as substring.

Together with 333981839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 333981794 and 333981803.

It is not a weakly prime, because it can be changed into another prime (333981811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166990920 + 166990921.

It is an arithmetic number, because the mean of its divisors is an integer number (166990921).

Almost surely, 2^333981841 is an apocalyptic number.

It is an amenable number.

333981841 is a deficient number, since it is larger than the sum of its proper divisors (1).

333981841 is an equidigital number, since it uses as much as digits as its factorization.

333981841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 333981841 is about 18275.1700676081. The cubic root of 333981841 is about 693.8106331661.

The spelling of 333981841 in words is "three hundred thirty-three million, nine hundred eighty-one thousand, eight hundred forty-one".