8489487269 has 2 divisors, whose sum is σ = 8489487270. Its totient is φ = 8489487268.

The previous prime is 8489487247. The next prime is 8489487277. The reversal of 8489487269 is 9627849848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4852794244 + 3636693025 = 69662^2 + 60305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8489487269 is a prime.

It is a super-2 number, since 2×8489487269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8489487169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244743634 + 4244743635.

It is an arithmetic number, because the mean of its divisors is an integer number (4244743635).

Almost surely, 2^8489487269 is an apocalyptic number.

It is an amenable number.

8489487269 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489487269 is an equidigital number, since it uses as much as digits as its factorization.

8489487269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55738368, while the sum is 65.

The square root of 8489487269 is about 92138.4136449071. The cubic root of 8489487269 is about 2039.9858442084.

The spelling of 8489487269 in words is "eight billion, four hundred eighty-nine million, four hundred eighty-seven thousand, two hundred sixty-nine".