838831 has 24 divisors (see below), whose sum is σ = 1108080. Its totient is φ = 628992.

The previous prime is 838813. The next prime is 838837. The reversal of 838831 is 138838.

It is not a de Polignac number, because 838831 - 2¹³ = 830639 is a prime.

It is a super-2 number, since 2×838831² = 1407274893122, which contains 22 as substring.

Its product of digits (4608) is a multiple of the sum of its prime divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 838793 and 838802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15801 + ... + 15853.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁸³⁸⁸³¹ is an apocalyptic number.

838831 is a deficient number, since it is larger than the sum of its proper divisors (269249).

838831 is a wasteful number, since it uses less digits than its factorization.

838831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 96 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 838831 is about 915.8771751714. The cubic root of 838831 is about 94.3100895700.

The spelling of 838831 in words is "eight hundred thirty-eight thousand, eight hundred thirty-one".