4398439 has 4 divisors (see below), whose sum is σ = 4505760. Its totient is φ = 4291120.

The previous prime is 4398431. The next prime is 4398463. The reversal of 4398439 is 9348934.

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 4398439 - 2³ = 4398431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4398431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53599 + ... + 53680.

It is an arithmetic number, because the mean of its divisors is an integer number (1126440).

Almost surely, 2^4398439 is an apocalyptic number.

4398439 is a deficient number, since it is larger than the sum of its proper divisors (107321).

4398439 is a wasteful number, since it uses less digits than its factorization.

4398439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107320.

The product of its digits is 93312, while the sum is 40.

The square root of 4398439 is about 2097.2455745573. The cubic root of 4398439 is about 163.8448736386.

The spelling of 4398439 in words is "four million, three hundred ninety-eight thousand, four hundred thirty-nine".