108847489 has 3 divisors (see below), whose sum is σ = 108857923. Its totient is φ = 108837056.

The previous prime is 108847471. The next prime is 108847493. The reversal of 108847489 is 984748801.

The square root of 108847489 is 10433.

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 can be written as a sum of positive squares in only one way, i.e., 70308225 + 38539264 = 8385^2 + 6208^2 .

It is not a de Polignac number, because 108847489 - 2¹⁷ = 108716417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108547489) 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 2 ways as a sum of consecutive naturals, for example, 5217 + ... + 15649.

Almost surely, 2^108847489 is an apocalyptic number.

108847489 is the 10433-rd square number.

108847489 is the 5217-th centered octagonal number.

It is an amenable number.

108847489 is a deficient number, since it is larger than the sum of its proper divisors (10434).

108847489 is an frugal number, since it uses more digits than its factorization.

108847489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20866 (or 10433 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The cubic root of 108847489 is about 477.4627241718.

Multiplying 108847489 by its sum of digits (49), we get a square (5333526961 = 73031²).

The spelling of 108847489 in words is "one hundred eight million, eight hundred forty-seven thousand, four hundred eighty-nine".