20000873 has 2 divisors, whose sum is σ = 20000874. Its totient is φ = 20000872.

The previous prime is 20000867. The next prime is 20000879. The reversal of 20000873 is 37800002.

It is a balanced prime because it is at equal distance from previous prime (20000867) and next prime (20000879).

It can be written as a sum of positive squares in only one way, i.e., 15147664 + 4853209 = 3892^2 + 2203^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000873 - 2²² = 15806569 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000436 + 10000437.

It is an arithmetic number, because the mean of its divisors is an integer number (10000437).

Almost surely, 2^20000873 is an apocalyptic number.

It is an amenable number.

20000873 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000873 is an equidigital number, since it uses as much as digits as its factorization.

20000873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20000873 is about 4472.2335583017. The cubic root of 20000873 is about 271.4457110797.

Adding to 20000873 its reverse (37800002), we get a palindrome (57800875).

The spelling of 20000873 in words is "twenty million, eight hundred seventy-three", and thus it is an aban number.