20066087 has 2 divisors, whose sum is σ = 20066088. Its totient is φ = 20066086.

The previous prime is 20066063. The next prime is 20066089. The reversal of 20066087 is 78066002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20066087 - 2⁶ = 20066023 is a prime.

Together with 20066089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20066089) 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, 10033043 + 10033044.

It is an arithmetic number, because the mean of its divisors is an integer number (10033044).

Almost surely, 2^20066087 is an apocalyptic number.

20066087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066087 is an equidigital number, since it uses as much as digits as its factorization.

20066087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20066087 is about 4479.5186125297. The cubic root of 20066087 is about 271.7404124801.

The spelling of 20066087 in words is "twenty million, sixty-six thousand, eighty-seven".