20196589 has 8 divisors (see below), whose sum is σ = 23407488. Its totient is φ = 17067120.

The previous prime is 20196577. The next prime is 20196607. The reversal of 20196589 is 98569102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20196589 - 2¹¹ = 20194541 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 (20196509) 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 7 ways as a sum of consecutive naturals, for example, 19822 + ... + 20815.

It is an arithmetic number, because the mean of its divisors is an integer number (2925936).

Almost surely, 2^20196589 is an apocalyptic number.

It is an amenable number.

20196589 is a deficient number, since it is larger than the sum of its proper divisors (3210899).

20196589 is an equidigital number, since it uses as much as digits as its factorization.

20196589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40715.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 20196589 is about 4494.0615260586. The cubic root of 20196589 is about 272.3282378565.

The spelling of 20196589 in words is "twenty million, one hundred ninety-six thousand, five hundred eighty-nine".