938381 has 4 divisors (see below), whose sum is σ = 947100. Its totient is φ = 929664.

The previous prime is 938369. The next prime is 938387. The reversal of 938381 is 183839.

938381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183839 = 23 ⋅7993.

It can be written as a sum of positive squares in 2 ways, for example, as 434281 + 504100 = 659^2 + 710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938381 is a prime.

It is a super-2 number, since 2×938381² = 1761117802322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938387) 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, 4196 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (236775).

2⁹³⁸³⁸¹ is an apocalyptic number.

It is an amenable number.

938381 is a deficient number, since it is larger than the sum of its proper divisors (8719).

938381 is a wasteful number, since it uses less digits than its factorization.

938381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718.

The product of its digits is 5184, while the sum is 32.

The square root of 938381 is about 968.7006761637. The cubic root of 938381 is about 97.9023391943.

It can be divided in two parts, 93838 and 1, that added together give a palindrome (93839).

The spelling of 938381 in words is "nine hundred thirty-eight thousand, three hundred eighty-one".