4288489 has 2 divisors, whose sum is σ = 4288490. Its totient is φ = 4288488.

The previous prime is 4288481. The next prime is 4288517. The reversal of 4288489 is 9848824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 648025 = 1908^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 4288489 - 2³ = 4288481 is a prime.

It is a super-2 number, since 2×4288489² = 36782275806242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4³ + 2¹¹ + 8⁵ + 8⁷ + 4⁴ + 8⁷ + 9⁵ .

It is not a weakly prime, because it can be changed into another prime (4288481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144244 + 2144245.

It is an arithmetic number, because the mean of its divisors is an integer number (2144245).

Almost surely, 2^4288489 is an apocalyptic number.

It is an amenable number.

4288489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4288489 is an equidigital number, since it uses as much as digits as its factorization.

4288489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 43.

The square root of 4288489 is about 2070.8667267596. The cubic root of 4288489 is about 162.4680994579.

The spelling of 4288489 in words is "four million, two hundred eighty-eight thousand, four hundred eighty-nine".