20000093 has 2 divisors, whose sum is σ = 20000094. Its totient is φ = 20000092.

The previous prime is 20000081. The next prime is 20000107. The reversal of 20000093 is 39000002.

It is a happy number.

It is an a-pointer prime, because the next prime (20000107) can be obtained adding 20000093 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19035769 + 964324 = 4363^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000093 - 2⁴ = 20000077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000003) 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, 10000046 + 10000047.

It is an arithmetic number, because the mean of its divisors is an integer number (10000047).

Almost surely, 2^20000093 is an apocalyptic number.

It is an amenable number.

20000093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000093 is an equidigital number, since it uses as much as digits as its factorization.

20000093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 20000093 is about 4472.1463527036. The cubic root of 20000093 is about 271.4421823936.

Adding to 20000093 its reverse (39000002), we get a palindrome (59000095).

The spelling of 20000093 in words is "twenty million, ninety-three", and thus it is an aban number and an uban number.