4239487 has 4 divisors (see below), whose sum is σ = 4845136. Its totient is φ = 3633840.

The previous prime is 4239479. The next prime is 4239491. The reversal of 4239487 is 7849324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4239487 - 2³ = 4239479 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302814 + ... + 302827.

It is an arithmetic number, because the mean of its divisors is an integer number (1211284).

Almost surely, 2^4239487 is an apocalyptic number.

4239487 is a deficient number, since it is larger than the sum of its proper divisors (605649).

4239487 is an equidigital number, since it uses as much as digits as its factorization.

4239487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605648.

The product of its digits is 48384, while the sum is 37.

The square root of 4239487 is about 2059.0014570175. The cubic root of 4239487 is about 161.8469188480.

The spelling of 4239487 in words is "four million, two hundred thirty-nine thousand, four hundred eighty-seven".