838865 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 618240.

The previous prime is 838853. The next prime is 838889. The reversal of 838865 is 568838.

It is a happy number.

838865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 838865 - 2⁸ = 838609 is a prime.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5966 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁸³⁸⁸⁶⁵ is an apocalyptic number.

838865 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

838865 is a deficient number, since it is larger than the sum of its proper divisors (249775).

838865 is a wasteful number, since it uses less digits than its factorization.

838865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its digits is 46080, while the sum is 38.

The square root of 838865 is about 915.8957364242. The cubic root of 838865 is about 94.3113637637.

The spelling of 838865 in words is "eight hundred thirty-eight thousand, eight hundred sixty-five".