8669489 has 2 divisors, whose sum is σ = 8669490. Its totient is φ = 8669488.

The previous prime is 8669483. The next prime is 8669501. The reversal of 8669489 is 9849668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 874225 = 2792^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 8669489 - 2⁸ = 8669233 is a prime.

It is a super-2 number, since 2×8669489² = 150320079042242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8669483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334744 + 4334745.

It is an arithmetic number, because the mean of its divisors is an integer number (4334745).

Almost surely, 2^8669489 is an apocalyptic number.

It is an amenable number.

8669489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8669489 is an equidigital number, since it uses as much as digits as its factorization.

8669489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 8669489 is about 2944.3995992392. The cubic root of 8669489 is about 205.4302998073.

The spelling of 8669489 in words is "eight million, six hundred sixty-nine thousand, four hundred eighty-nine".