4456989 has 6 divisors (see below), whose sum is σ = 6437886. Its totient is φ = 2971320.

The previous prime is 4456973. The next prime is 4456997. The reversal of 4456989 is 9896544.

It is a happy number.

4456989 is a `hidden beast` number, since 4 + 4 + 569 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2722500 + 1734489 = 1650^2 + 1317^2 .

It is not a de Polignac number, because 4456989 - 2⁴ = 4456973 is a prime.

It is a super-2 number, since 2×4456989² = 39729501892242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 4¹¹ + 5 + 6 + 9 + 8³ + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4456939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247602 + ... + 247619.

It is an arithmetic number, because the mean of its divisors is an integer number (1072981).

Almost surely, 2^4456989 is an apocalyptic number.

It is an amenable number.

4456989 is a deficient number, since it is larger than the sum of its proper divisors (1980897).

4456989 is a wasteful number, since it uses less digits than its factorization.

4456989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495227 (or 495224 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 4456989 is about 2111.1582129248. The cubic root of 4456989 is about 164.5686806518.

It can be divided in two parts, 4456 and 989, that added together give a palindrome (5445).

The spelling of 4456989 in words is "four million, four hundred fifty-six thousand, nine hundred eighty-nine".