838423 has 8 divisors (see below), whose sum is σ = 896400. Its totient is φ = 781440.

The previous prime is 838421. The next prime is 838429. The reversal of 838423 is 324838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838423 - 2¹ = 838421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 838391 and 838400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368 + ... + 2698.

It is an arithmetic number, because the mean of its divisors is an integer number (112050).

2⁸³⁸⁴²³ is an apocalyptic number.

838423 is a deficient number, since it is larger than the sum of its proper divisors (57977).

838423 is a wasteful number, since it uses less digits than its factorization.

838423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

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

The square root of 838423 is about 915.6544107904. The cubic root of 838423 is about 94.2947965583.

It can be divided in two parts, 83842 and 3, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 838423 in words is "eight hundred thirty-eight thousand, four hundred twenty-three".