838555 has 4 divisors (see below), whose sum is σ = 1006272. Its totient is φ = 670840.

The previous prime is 838553. The next prime is 838561. The reversal of 838555 is 555838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555838 = 2 ⋅277919.

It is not a de Polignac number, because 838555 - 2¹ = 838553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 838555.

It is not an unprimeable number, because it can be changed into a prime (838553) 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, 83851 + ... + 83860.

It is an arithmetic number, because the mean of its divisors is an integer number (251568).

2⁸³⁸⁵⁵⁵ is an apocalyptic number.

838555 is a deficient number, since it is larger than the sum of its proper divisors (167717).

838555 is a wasteful number, since it uses less digits than its factorization.

838555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167716.

The product of its digits is 24000, while the sum is 34.

The square root of 838555 is about 915.7264875496. The cubic root of 838555 is about 94.2997448402.

The spelling of 838555 in words is "eight hundred thirty-eight thousand, five hundred fifty-five".