2089647923 has 8 divisors (see below), whose sum is σ = 2307082176. Its totient is φ = 1876791400.

The previous prime is 2089647919. The next prime is 2089647971. The reversal of 2089647923 is 3297469802.

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

It is not a de Polignac number, because 2089647923 - 2² = 2089647919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089647323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143473 + ... + 1145298.

It is an arithmetic number, because the mean of its divisors is an integer number (288385272).

Almost surely, 2^2089647923 is an apocalyptic number.

2089647923 is a deficient number, since it is larger than the sum of its proper divisors (217434253).

2089647923 is a wasteful number, since it uses less digits than its factorization.

2089647923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288865.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 2089647923 is about 45712.6669862960. Note that the first 3 decimals coincide. The cubic root of 2089647923 is about 1278.4714670299.

The spelling of 2089647923 in words is "two billion, eighty-nine million, six hundred forty-seven thousand, nine hundred twenty-three".