20703329 has 2 divisors, whose sum is σ = 20703330. Its totient is φ = 20703328.

The previous prime is 20703317. The next prime is 20703341. The reversal of 20703329 is 92330702.

It is a balanced prime because it is at equal distance from previous prime (20703317) and next prime (20703341).

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 5085025 = 3952^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 20703329 - 2¹² = 20699233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20703298 and 20703307.

It is not a weakly prime, because it can be changed into another prime (20703349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10351664 + 10351665.

It is an arithmetic number, because the mean of its divisors is an integer number (10351665).

Almost surely, 2^20703329 is an apocalyptic number.

It is an amenable number.

20703329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20703329 is an equidigital number, since it uses as much as digits as its factorization.

20703329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 20703329 is about 4550.0910979891. The cubic root of 20703329 is about 274.5870562615.

The spelling of 20703329 in words is "twenty million, seven hundred three thousand, three hundred twenty-nine".