4239789 has 8 divisors (see below), whose sum is σ = 5708352. Its totient is φ = 2798880.

The previous prime is 4239761. The next prime is 4239803. The reversal of 4239789 is 9879324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4239789 - 2⁸ = 4239533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4239789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6552 + ... + 7169.

It is an arithmetic number, because the mean of its divisors is an integer number (713544).

Almost surely, 2^4239789 is an apocalyptic number.

It is an amenable number.

4239789 is a deficient number, since it is larger than the sum of its proper divisors (1468563).

4239789 is a wasteful number, since it uses less digits than its factorization.

4239789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827.

The product of its digits is 108864, while the sum is 42.

The square root of 4239789 is about 2059.0747922307. The cubic root of 4239789 is about 161.8507618137.

It can be divided in two parts, 42397 and 89, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 4239789 in words is "four million, two hundred thirty-nine thousand, seven hundred eighty-nine".