20189703 has 4 divisors (see below), whose sum is σ = 26919608. Its totient is φ = 13459800.

The previous prime is 20189681. The next prime is 20189707. The reversal of 20189703 is 30798102.

It is a happy number.

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

It is not a de Polignac number, because 20189703 - 2⁶ = 20189639 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 (20189707) 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, 3364948 + ... + 3364953.

It is an arithmetic number, because the mean of its divisors is an integer number (6729902).

Almost surely, 2^20189703 is an apocalyptic number.

20189703 is a deficient number, since it is larger than the sum of its proper divisors (6729905).

20189703 is an equidigital number, since it uses as much as digits as its factorization.

20189703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729904.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 20189703 is about 4493.2953386129. The cubic root of 20189703 is about 272.2972843556.

The spelling of 20189703 in words is "twenty million, one hundred eighty-nine thousand, seven hundred three".