20030973 has 4 divisors (see below), whose sum is σ = 26707968. Its totient is φ = 13353980.

The previous prime is 20030957. The next prime is 20030987. The reversal of 20030973 is 37903002.

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.

It is a cyclic number.

It is not a de Polignac number, because 20030973 - 2⁴ = 20030957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3338493 + ... + 3338498.

It is an arithmetic number, because the mean of its divisors is an integer number (6676992).

Almost surely, 2^20030973 is an apocalyptic number.

It is an amenable number.

20030973 is a deficient number, since it is larger than the sum of its proper divisors (6676995).

20030973 is an equidigital number, since it uses as much as digits as its factorization.

20030973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676994.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 20030973 is about 4475.5975020102. The cubic root of 20030973 is about 271.5818121494.

Adding to 20030973 its reverse (37903002), we get a palindrome (57933975).

The spelling of 20030973 in words is "twenty million, thirty thousand, nine hundred seventy-three".