838523 has 8 divisors (see below), whose sum is σ = 968448. Its totient is φ = 711144.

The previous prime is 838517. The next prime is 838547. The reversal of 838523 is 325838.

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

It is not a de Polignac number, because 838523 - 2⁶ = 838459 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (838553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 1302.

It is an arithmetic number, because the mean of its divisors is an integer number (121056).

2⁸³⁸⁵²³ is an apocalyptic number.

838523 is a deficient number, since it is larger than the sum of its proper divisors (129925).

838523 is a wasteful number, since it uses less digits than its factorization.

838523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its digits is 5760, while the sum is 29.

The square root of 838523 is about 915.7090149169. The cubic root of 838523 is about 94.2985453044.

The spelling of 838523 in words is "eight hundred thirty-eight thousand, five hundred twenty-three".