20003073 has 8 divisors (see below), whose sum is σ = 26863200. Its totient is φ = 13239168.

The previous prime is 20003063. The next prime is 20003089. The reversal of 20003073 is 37030002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20003073 - 2⁴ = 20003057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20003003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23568 + ... + 24401.

It is an arithmetic number, because the mean of its divisors is an integer number (3357900).

Almost surely, 2^20003073 is an apocalyptic number.

It is an amenable number.

20003073 is a deficient number, since it is larger than the sum of its proper divisors (6860127).

20003073 is a wasteful number, since it uses less digits than its factorization.

20003073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48111.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 20003073 is about 4472.4795136479. The cubic root of 20003073 is about 271.4556632897.

Adding to 20003073 its reverse (37030002), we get a palindrome (57033075).

The spelling of 20003073 in words is "twenty million, three thousand, seventy-three".