8551489 has 2 divisors, whose sum is σ = 8551490. Its totient is φ = 8551488.

The previous prime is 8551483. The next prime is 8551507. The reversal of 8551489 is 9841558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7924225 + 627264 = 2815^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 8551489 - 2³ = 8551481 is a prime.

It is not a weakly prime, because it can be changed into another prime (8551481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4275744 + 4275745.

It is an arithmetic number, because the mean of its divisors is an integer number (4275745).

Almost surely, 2^8551489 is an apocalyptic number.

It is an amenable number.

8551489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8551489 is an equidigital number, since it uses as much as digits as its factorization.

8551489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 40.

The square root of 8551489 is about 2924.2929059860. The cubic root of 8551489 is about 204.4940049215.

The spelling of 8551489 in words is "eight million, five hundred fifty-one thousand, four hundred eighty-nine".