438959 has 4 divisors (see below), whose sum is σ = 441816. Its totient is φ = 436104.

The previous prime is 438953. The next prime is 438961. The reversal of 438959 is 959834.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438959.

It is not an unprimeable number, because it can be changed into a prime (438953) 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, 1184 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (110454).

2⁴³⁸⁹⁵⁹ is an apocalyptic number.

438959 is a deficient number, since it is larger than the sum of its proper divisors (2857).

438959 is a wasteful number, since it uses less digits than its factorization.

438959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its digits is 38880, while the sum is 38.

The square root of 438959 is about 662.5398101246. The cubic root of 438959 is about 75.9990189162. Note that the first 3 decimals are identical.

The spelling of 438959 in words is "four hundred thirty-eight thousand, nine hundred fifty-nine".