438897 has 4 divisors (see below), whose sum is σ = 585200. Its totient is φ = 292596.

The previous prime is 438887. The next prime is 438899. The reversal of 438897 is 798834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 438897 - 2⁶ = 438833 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438899) 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, 73147 + ... + 73152.

It is an arithmetic number, because the mean of its divisors is an integer number (146300).

438897 is a Friedman number, since it can be written as (84-8)^3-79, using all its digits and the basic arithmetic operations.

2⁴³⁸⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

438897 is a deficient number, since it is larger than the sum of its proper divisors (146303).

438897 is a wasteful number, since it uses less digits than its factorization.

438897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146302.

The product of its digits is 48384, while the sum is 39.

The square root of 438897 is about 662.4930188311. The cubic root of 438897 is about 75.9954406314.

The spelling of 438897 in words is "four hundred thirty-eight thousand, eight hundred ninety-seven".