8489969 has 2 divisors, whose sum is σ = 8489970. Its totient is φ = 8489968.

The previous prime is 8489951. The next prime is 8490019. The reversal of 8489969 is 9699848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5640625 + 2849344 = 2375^2 + 1688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8489969 is a prime.

It is a super-2 number, since 2×8489969² = 144159147241922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8489969.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8489269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244984 + 4244985.

It is an arithmetic number, because the mean of its divisors is an integer number (4244985).

Almost surely, 2^8489969 is an apocalyptic number.

It is an amenable number.

8489969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489969 is an equidigital number, since it uses as much as digits as its factorization.

8489969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 53.

The square root of 8489969 is about 2913.7551372756. The cubic root of 8489969 is about 204.0024429414.

The spelling of 8489969 in words is "eight million, four hundred eighty-nine thousand, nine hundred sixty-nine".