332009989 has 2 divisors, whose sum is σ = 332009990. Its totient is φ = 332009988.

The previous prime is 332009981. The next prime is 332010001. The reversal of 332009989 is 989900233.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311804964 + 20205025 = 17658^2 + 4495^2 .

It is a cyclic number.

It is not a de Polignac number, because 332009989 - 2³ = 332009981 is a prime.

It is a super-2 number, since 2×332009989² = 220461265591560242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332009981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166004994 + 166004995.

It is an arithmetic number, because the mean of its divisors is an integer number (166004995).

Almost surely, 2^332009989 is an apocalyptic number.

It is an amenable number.

332009989 is a deficient number, since it is larger than the sum of its proper divisors (1).

332009989 is an equidigital number, since it uses as much as digits as its factorization.

332009989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 332009989 is about 18221.1412650251. The cubic root of 332009989 is about 692.4425017099.

The spelling of 332009989 in words is "three hundred thirty-two million, nine thousand, nine hundred eighty-nine".