439099 has 4 divisors (see below), whose sum is σ = 440440. Its totient is φ = 437760.

The previous prime is 439081. The next prime is 439123. The reversal of 439099 is 990934.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 439099 - 2¹³ = 430907 is a prime.

It is a Duffinian number.

439099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (439009) 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, 187 + ... + 955.

It is an arithmetic number, because the mean of its divisors is an integer number (110110).

2⁴³⁹⁰⁹⁹ is an apocalyptic number.

439099 is a deficient number, since it is larger than the sum of its proper divisors (1341).

439099 is an equidigital number, since it uses as much as digits as its factorization.

439099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 439099 is about 662.6454557303. The cubic root of 439099 is about 76.0070976751.

It can be divided in two parts, 4390 and 99, that added together give a square (4489 = 67²).

The spelling of 439099 in words is "four hundred thirty-nine thousand, ninety-nine".