438973 has 4 divisors (see below), whose sum is σ = 454140. Its totient is φ = 423808.

The previous prime is 438967. The next prime is 438979. The reversal of 438973 is 379834.

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

It is an interprime number because it is at equal distance from previous prime (438967) and next prime (438979).

It can be written as a sum of positive squares in 2 ways, for example, as 248004 + 190969 = 498^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 438973 - 2⁵ = 438941 is a prime.

438973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438979) 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, 7540 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (113535).

438973 is a Friedman number, since it can be written as (47-9)^3*8-3, using all its digits and the basic arithmetic operations.

2⁴³⁸⁹⁷³ is an apocalyptic number.

It is an amenable number.

438973 is a deficient number, since it is larger than the sum of its proper divisors (15167).

438973 is a wasteful number, since it uses less digits than its factorization.

438973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166.

The product of its digits is 18144, while the sum is 34.

The square root of 438973 is about 662.5503754433. The cubic root of 438973 is about 75.9998268694. Note that the first 3 decimals are identical.

The spelling of 438973 in words is "four hundred thirty-eight thousand, nine hundred seventy-three".