20235329 has 2 divisors, whose sum is σ = 20235330. Its totient is φ = 20235328.

The previous prime is 20235269. The next prime is 20235353. The reversal of 20235329 is 92353202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19562929 + 672400 = 4423^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 20235329 - 2²⁰ = 19186753 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20235298 and 20235307.

It is not a weakly prime, because it can be changed into another prime (20235629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117664 + 10117665.

It is an arithmetic number, because the mean of its divisors is an integer number (10117665).

Almost surely, 2^20235329 is an apocalyptic number.

It is an amenable number.

20235329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20235329 is an equidigital number, since it uses as much as digits as its factorization.

20235329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 20235329 is about 4498.3695935305. The cubic root of 20235329 is about 272.5022483893.

The spelling of 20235329 in words is "twenty million, two hundred thirty-five thousand, three hundred twenty-nine".