2389633489 has 4 divisors (see below), whose sum is σ = 2389831780. Its totient is φ = 2389435200.

The previous prime is 2389633483. The next prime is 2389633537. The reversal of 2389633489 is 9843369832.

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 1863389889 + 526243600 = 43167^2 + 22940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2389633489 - 2²¹ = 2387536337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2389633483) 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, 79812 + ... + 105589.

It is an arithmetic number, because the mean of its divisors is an integer number (597457945).

Almost surely, 2^2389633489 is an apocalyptic number.

It is an amenable number.

2389633489 is a deficient number, since it is larger than the sum of its proper divisors (198291).

2389633489 is a wasteful number, since it uses less digits than its factorization.

2389633489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198290.

The product of its digits is 6718464, while the sum is 55.

The square root of 2389633489 is about 48883.8775978338. The cubic root of 2389633489 is about 1336.9354279986.

The spelling of 2389633489 in words is "two billion, three hundred eighty-nine million, six hundred thirty-three thousand, four hundred eighty-nine".