108458989 has 2 divisors, whose sum is σ = 108458990. Its totient is φ = 108458988.

The previous prime is 108458971. The next prime is 108459019. The reversal of 108458989 is 989854801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96864964 + 11594025 = 9842^2 + 3405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108458989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108458969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54229494 + 54229495.

It is an arithmetic number, because the mean of its divisors is an integer number (54229495).

Almost surely, 2^108458989 is an apocalyptic number.

It is an amenable number.

108458989 is a deficient number, since it is larger than the sum of its proper divisors (1).

108458989 is an equidigital number, since it uses as much as digits as its factorization.

108458989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 108458989 is about 10414.3645509460. The cubic root of 108458989 is about 476.8939914178.

The spelling of 108458989 in words is "one hundred eight million, four hundred fifty-eight thousand, nine hundred eighty-nine".