20385067 has 2 divisors, whose sum is σ = 20385068. Its totient is φ = 20385066.

The previous prime is 20385059. The next prime is 20385083. The reversal of 20385067 is 76058302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20385067 - 2³ = 20385059 is a prime.

It is a super-5 number, since 5×20385067⁵ (a number of 38 digits) contains 55555 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20385367) 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, 10192533 + 10192534.

It is an arithmetic number, because the mean of its divisors is an integer number (10192534).

Almost surely, 2^20385067 is an apocalyptic number.

20385067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20385067 is an equidigital number, since it uses as much as digits as its factorization.

20385067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20385067 is about 4514.9825027346. The cubic root of 20385067 is about 273.1727540181.

The spelling of 20385067 in words is "twenty million, three hundred eighty-five thousand, sixty-seven".