2089689473 has 4 divisors (see below), whose sum is σ = 2113169220. Its totient is φ = 2066209728.

The previous prime is 2089689431. The next prime is 2089689479. The reversal of 2089689473 is 3749869802.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 631366129 + 1458323344 = 25127^2 + 38188^2 .

It is a cyclic number.

It is not a de Polignac number, because 2089689473 - 2¹⁰ = 2089688449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089689479) 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, 11739740 + ... + 11739917.

It is an arithmetic number, because the mean of its divisors is an integer number (528292305).

Almost surely, 2^2089689473 is an apocalyptic number.

It is an amenable number.

2089689473 is a deficient number, since it is larger than the sum of its proper divisors (23479747).

2089689473 is an equidigital number, since it uses as much as digits as its factorization.

2089689473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23479746.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The square root of 2089689473 is about 45713.1214532545. The cubic root of 2089689473 is about 1278.4799405685.

The spelling of 2089689473 in words is "two billion, eighty-nine million, six hundred eighty-nine thousand, four hundred seventy-three".