838155 has 16 divisors (see below), whose sum is σ = 1361664. Its totient is φ = 440160.

The previous prime is 838153. The next prime is 838157. The reversal of 838155 is 551838.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (838153) and next prime (838157).

It is not a de Polignac number, because 838155 - 2¹ = 838153 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (838153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672 + ... + 1458.

It is an arithmetic number, because the mean of its divisors is an integer number (85104).

2⁸³⁸¹⁵⁵ is an apocalyptic number.

838155 is a deficient number, since it is larger than the sum of its proper divisors (523509).

838155 is a wasteful number, since it uses less digits than its factorization.

838155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 4800, while the sum is 30.

The square root of 838155 is about 915.5080556718. The cubic root of 838155 is about 94.2847484487.

The spelling of 838155 in words is "eight hundred thirty-eight thousand, one hundred fifty-five".