8498989 has 2 divisors, whose sum is σ = 8498990. Its totient is φ = 8498988.

The previous prime is 8498977. The next prime is 8498999. The reversal of 8498989 is 9898948.

8498989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8497225 + 1764 = 2915^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 8498989 - 2⁵ = 8498957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8498969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4249494 + 4249495.

It is an arithmetic number, because the mean of its divisors is an integer number (4249495).

Almost surely, 2^8498989 is an apocalyptic number.

It is an amenable number.

8498989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8498989 is an equidigital number, since it uses as much as digits as its factorization.

8498989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 55.

The square root of 8498989 is about 2915.3025571971. The cubic root of 8498989 is about 204.0746634941.

It can be divided in two parts, 84989 and 89, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 8498989 in words is "eight million, four hundred ninety-eight thousand, nine hundred eighty-nine".