20589029 has 2 divisors, whose sum is σ = 20589030. Its totient is φ = 20589028.

The previous prime is 20589017. The next prime is 20589031. The reversal of 20589029 is 92098502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 10252804 = 3215^2 + 3202^2 .

It is a cyclic number.

It is not a de Polignac number, because 20589029 - 2⁴ = 20589013 is a prime.

Together with 20589031, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20589029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20589629) 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, 10294514 + 10294515.

It is an arithmetic number, because the mean of its divisors is an integer number (10294515).

Almost surely, 2^20589029 is an apocalyptic number.

It is an amenable number.

20589029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20589029 is an equidigital number, since it uses as much as digits as its factorization.

20589029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 20589029 is about 4537.5135261506. The cubic root of 20589029 is about 274.0808053715.

The spelling of 20589029 in words is "twenty million, five hundred eighty-nine thousand, twenty-nine".