4288789 has 2 divisors, whose sum is σ = 4288790. Its totient is φ = 4288788.

The previous prime is 4288759. The next prime is 4288793. The reversal of 4288789 is 9878824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4169764 + 119025 = 2042^2 + 345^2 .

It is a cyclic number.

It is not a de Polignac number, because 4288789 - 2¹⁷ = 4157717 is a prime.

It is a super-2 number, since 2×4288789² = 36787422173042, which contains 22 as substring.

4288789 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4288729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144394 + 2144395.

It is an arithmetic number, because the mean of its divisors is an integer number (2144395).

Almost surely, 2^4288789 is an apocalyptic number.

It is an amenable number.

4288789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4288789 is an equidigital number, since it uses as much as digits as its factorization.

4288789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 46.

The square root of 4288789 is about 2070.9391589325. The cubic root of 4288789 is about 162.4718878391.

It can be divided in two parts, 42 and 88789, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 4288789 in words is "four million, two hundred eighty-eight thousand, seven hundred eighty-nine".