20182873 has 4 divisors (see below), whose sum is σ = 20199888. Its totient is φ = 20165860.

The previous prime is 20182853. The next prime is 20182889. The reversal of 20182873 is 37828102.

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 a de Polignac number, because none of the positive numbers 2^k-20182873 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20182843) 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, 6583 + ... + 9148.

It is an arithmetic number, because the mean of its divisors is an integer number (5049972).

Almost surely, 2^20182873 is an apocalyptic number.

It is an amenable number.

20182873 is a deficient number, since it is larger than the sum of its proper divisors (17015).

20182873 is a wasteful number, since it uses less digits than its factorization.

20182873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17014.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 20182873 is about 4492.5352530615. The cubic root of 20182873 is about 272.2665756290.

The spelling of 20182873 in words is "twenty million, one hundred eighty-two thousand, eight hundred seventy-three".