20093893 has 4 divisors (see below), whose sum is σ = 20122560. Its totient is φ = 20065228.

The previous prime is 20093891. The next prime is 20093911. The reversal of 20093893 is 39839002.

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 20093893 - 2¹ = 20093891 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 (20093891) 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, 13255 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (5030640).

Almost surely, 2^20093893 is an apocalyptic number.

It is an amenable number.

20093893 is a deficient number, since it is larger than the sum of its proper divisors (28667).

20093893 is an equidigital number, since it uses as much as digits as its factorization.

20093893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28666.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 20093893 is about 4482.6212197776. The cubic root of 20093893 is about 271.8658733537.

The spelling of 20093893 in words is "twenty million, ninety-three thousand, eight hundred ninety-three".