2001329389 has 2 divisors, whose sum is σ = 2001329390. Its totient is φ = 2001329388.

The previous prime is 2001329321. The next prime is 2001329417. The reversal of 2001329389 is 9839231002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1911875625 + 89453764 = 43725^2 + 9458^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001329389 - 2²⁷ = 1867111661 is a prime.

It is a super-2 number, since 2×2001329389² = 8010638646550226642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001329189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000664694 + 1000664695.

It is an arithmetic number, because the mean of its divisors is an integer number (1000664695).

Almost surely, 2^2001329389 is an apocalyptic number.

It is an amenable number.

2001329389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001329389 is an equidigital number, since it uses as much as digits as its factorization.

2001329389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2001329389 is about 44736.2201018369. The cubic root of 2001329389 is about 1260.2001422644.

The spelling of 2001329389 in words is "two billion, one million, three hundred twenty-nine thousand, three hundred eighty-nine".