108956489 has 2 divisors, whose sum is σ = 108956490. Its totient is φ = 108956488.

The previous prime is 108956479. The next prime is 108956501. The reversal of 108956489 is 984659801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90535225 + 18421264 = 9515^2 + 4292^2 .

It is a cyclic number.

It is not a de Polignac number, because 108956489 - 2⁴ = 108956473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108956479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54478244 + 54478245.

It is an arithmetic number, because the mean of its divisors is an integer number (54478245).

Almost surely, 2^108956489 is an apocalyptic number.

It is an amenable number.

108956489 is a deficient number, since it is larger than the sum of its proper divisors (1).

108956489 is an equidigital number, since it uses as much as digits as its factorization.

108956489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 108956489 is about 10438.2225019397. Note that the first 3 decimals coincide. The cubic root of 108956489 is about 477.6220482406.

The spelling of 108956489 in words is "one hundred eight million, nine hundred fifty-six thousand, four hundred eighty-nine".