20350087 has 2 divisors, whose sum is σ = 20350088. Its totient is φ = 20350086.

The previous prime is 20350081. The next prime is 20350093. The reversal of 20350087 is 78005302.

It is a balanced prime because it is at equal distance from previous prime (20350081) and next prime (20350093).

It is a cyclic number.

It is not a de Polignac number, because 20350087 - 2³ = 20350079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20350081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175043 + 10175044.

It is an arithmetic number, because the mean of its divisors is an integer number (10175044).

Almost surely, 2^20350087 is an apocalyptic number.

20350087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350087 is an equidigital number, since it uses as much as digits as its factorization.

20350087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20350087 is about 4511.1070703321. The cubic root of 20350087 is about 273.0164132054.

Adding to 20350087 its reverse (78005302), we get a palindrome (98355389).

The spelling of 20350087 in words is "twenty million, three hundred fifty thousand, eighty-seven".