333989 has 2 divisors, whose sum is σ = 333990. Its totient is φ = 333988.

The previous prime is 333973. The next prime is 333997. The reversal of 333989 is 989333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 3364 = 575^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 333989 - 2⁴ = 333973 is a prime.

It is a super-2 number, since 2×333989² = 223097304242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (333929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166994 + 166995.

It is an arithmetic number, because the mean of its divisors is an integer number (166995).

2³³³⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

333989 is a deficient number, since it is larger than the sum of its proper divisors (1).

333989 is an equidigital number, since it uses as much as digits as its factorization.

333989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 333989 is about 577.9178142262. The cubic root of 333989 is about 69.3815590476.

The spelling of 333989 in words is "three hundred thirty-three thousand, nine hundred eighty-nine".