20173093 has 4 divisors (see below), whose sum is σ = 21050208. Its totient is φ = 19295980.

The previous prime is 20173091. The next prime is 20173133. The reversal of 20173093 is 39037102.

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 20173093 - 2¹ = 20173091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20173091) 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, 438523 + ... + 438568.

It is an arithmetic number, because the mean of its divisors is an integer number (5262552).

Almost surely, 2^20173093 is an apocalyptic number.

20173093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20173093 is a deficient number, since it is larger than the sum of its proper divisors (877115).

20173093 is an equidigital number, since it uses as much as digits as its factorization.

20173093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877114.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 20173093 is about 4491.4466489095. The cubic root of 20173093 is about 272.2225911853. Note that the first 3 decimals are identical.

The spelling of 20173093 in words is "twenty million, one hundred seventy-three thousand, ninety-three".