20201873 has 4 divisors (see below), whose sum is σ = 20671728. Its totient is φ = 19732020.

The previous prime is 20201849. The next prime is 20201891. The reversal of 20201873 is 37810202.

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 an emirpimes, since its reverse is a distinct semiprime: 37810202 = 2 ⋅18905101.

It is a cyclic number.

It is not a de Polignac number, because 20201873 - 2⁶ = 20201809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201803) 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, 234863 + ... + 234948.

It is an arithmetic number, because the mean of its divisors is an integer number (5167932).

Almost surely, 2^20201873 is an apocalyptic number.

It is an amenable number.

20201873 is a deficient number, since it is larger than the sum of its proper divisors (469855).

20201873 is an equidigital number, since it uses as much as digits as its factorization.

20201873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469854.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20201873 is about 4494.6493745341. The cubic root of 20201873 is about 272.3519853803.

The spelling of 20201873 in words is "twenty million, two hundred one thousand, eight hundred seventy-three".