438823 has 16 divisors (see below), whose sum is σ = 564480. Its totient is φ = 331200.

The previous prime is 438793. The next prime is 438827. The reversal of 438823 is 328834.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438791 and 438800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3088 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2⁴³⁸⁸²³ is an apocalyptic number.

438823 is a deficient number, since it is larger than the sum of its proper divisors (125657).

438823 is a wasteful number, since it uses less digits than its factorization.

438823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its digits is 4608, while the sum is 28.

The square root of 438823 is about 662.4371668317. The cubic root of 438823 is about 75.9911693341.

The spelling of 438823 in words is "four hundred thirty-eight thousand, eight hundred twenty-three".