838455 has 8 divisors (see below), whose sum is σ = 1341552. Its totient is φ = 447168.

The previous prime is 838447. The next prime is 838459. The reversal of 838455 is 554838.

It is a happy number.

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

It is not a de Polignac number, because 838455 - 2³ = 838447 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 838455.

It is not an unprimeable number, because it can be changed into a prime (838459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27934 + ... + 27963.

It is an arithmetic number, because the mean of its divisors is an integer number (167694).

2⁸³⁸⁴⁵⁵ is an apocalyptic number.

838455 is a deficient number, since it is larger than the sum of its proper divisors (503097).

838455 is a wasteful number, since it uses less digits than its factorization.

838455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55905.

The product of its digits is 19200, while the sum is 33.

The square root of 838455 is about 915.6718844652. The cubic root of 838455 is about 94.2959961895.

The spelling of 838455 in words is "eight hundred thirty-eight thousand, four hundred fifty-five".