20000329 has 2 divisors, whose sum is σ = 20000330. Its totient is φ = 20000328.

The previous prime is 20000327. The next prime is 20000339. The reversal of 20000329 is 92300002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11209104 + 8791225 = 3348^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000329 - 2¹ = 20000327 is a prime.

Together with 20000327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20000327) 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, 10000164 + 10000165.

It is an arithmetic number, because the mean of its divisors is an integer number (10000165).

Almost surely, 2^20000329 is an apocalyptic number.

It is an amenable number.

20000329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000329 is an equidigital number, since it uses as much as digits as its factorization.

20000329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20000329 is about 4472.1727381665. The cubic root of 20000329 is about 271.4432500570.

The spelling of 20000329 in words is "twenty million, three hundred twenty-nine", and thus it is an aban number.