2389547689 has 3 divisors (see below), whose sum is σ = 2389596573. Its totient is φ = 2389498806.

The previous prime is 2389547683. The next prime is 2389547737. The reversal of 2389547689 is 9867459832.

The square root of 2389547689 is 48883.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2389547689 - 2¹³ = 2389539497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2389547683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24442 + ... + 73324.

It is an arithmetic number, because the mean of its divisors is an integer number (796532191).

Almost surely, 2^2389547689 is an apocalyptic number.

2389547689 is the 48883-rd square number.

2389547689 is the 24442-nd centered octagonal number.

It is an amenable number.

2389547689 is a deficient number, since it is larger than the sum of its proper divisors (48884).

2389547689 is an frugal number, since it uses more digits than its factorization.

2389547689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97766 (or 48883 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The cubic root of 2389547689 is about 1336.9194268792.

The spelling of 2389547689 in words is "two billion, three hundred eighty-nine million, five hundred forty-seven thousand, six hundred eighty-nine".