4663439 has 4 divisors (see below), whose sum is σ = 5087400. Its totient is φ = 4239480.

The previous prime is 4663433. The next prime is 4663441. The reversal of 4663439 is 9343664.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4663439 - 2¹⁶ = 4597903 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4663399 and 4663408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4663433) 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, 211964 + ... + 211985.

It is an arithmetic number, because the mean of its divisors is an integer number (1271850).

Almost surely, 2^4663439 is an apocalyptic number.

4663439 is a deficient number, since it is larger than the sum of its proper divisors (423961).

4663439 is a wasteful number, since it uses less digits than its factorization.

4663439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423960.

The product of its digits is 46656, while the sum is 35.

The square root of 4663439 is about 2159.4997105811. The cubic root of 4663439 is about 167.0713954831.

The spelling of 4663439 in words is "four million, six hundred sixty-three thousand, four hundred thirty-nine".