20200073 has 4 divisors (see below), whose sum is σ = 20211840. Its totient is φ = 20188308.

The previous prime is 20200057. The next prime is 20200087. The reversal of 20200073 is 37000202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20200073 - 2⁴ = 20200057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20200013) 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 in 3 ways as a sum of consecutive naturals, for example, 2753 + ... + 6926.

It is an arithmetic number, because the mean of its divisors is an integer number (5052960).

Almost surely, 2^20200073 is an apocalyptic number.

It is an amenable number.

20200073 is a deficient number, since it is larger than the sum of its proper divisors (11767).

20200073 is an equidigital number, since it uses as much as digits as its factorization.

20200073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11766.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 20200073 is about 4494.4491319849. The cubic root of 20200073 is about 272.3438962271.

Adding to 20200073 its reverse (37000202), we get a palindrome (57200275).

The spelling of 20200073 in words is "twenty million, two hundred thousand, seventy-three".