20173027 has 4 divisors (see below), whose sum is σ = 23054896. Its totient is φ = 17291160.

The previous prime is 20172989. The next prime is 20173051. The reversal of 20173027 is 72037102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20173027 - 2²³ = 11784419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20172989 and 20173007.

It is not an unprimeable number, because it can be changed into a prime (20173327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440924 + ... + 1440937.

It is an arithmetic number, because the mean of its divisors is an integer number (5763724).

Almost surely, 2^20173027 is an apocalyptic number.

20173027 is a deficient number, since it is larger than the sum of its proper divisors (2881869).

20173027 is an equidigital number, since it uses as much as digits as its factorization.

20173027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881868.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20173027 is about 4491.4393016048. The cubic root of 20173027 is about 272.2222943095. Note that the first 4 decimals are identical.

The spelling of 20173027 in words is "twenty million, one hundred seventy-three thousand, twenty-seven".