4024789 has 6 divisors (see below), whose sum is σ = 4248150. Its totient is φ = 3812616.

The previous prime is 4024781. The next prime is 4024807. The reversal of 4024789 is 9874204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3122289 + 902500 = 1767^2 + 950^2 .

It is not a de Polignac number, because 4024789 - 2³ = 4024781 is a prime.

It is a Duffinian number.

4024789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4024781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5214 + ... + 5935.

It is an arithmetic number, because the mean of its divisors is an integer number (708025).

Almost surely, 2^4024789 is an apocalyptic number.

It is an amenable number.

4024789 is a deficient number, since it is larger than the sum of its proper divisors (223361).

4024789 is a wasteful number, since it uses less digits than its factorization.

4024789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11187 (or 11168 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4024789 is about 2006.1876781597. The cubic root of 4024789 is about 159.0673474964.

The spelling of 4024789 in words is "four million, twenty-four thousand, seven hundred eighty-nine".