838900 has 18 divisors (see below), whose sum is σ = 1820630. Its totient is φ = 335520.

The previous prime is 838897. The next prime is 838909. The reversal of 838900 is 9838.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 675684 = 404^2 + 822^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4095 + ... + 4294.

2⁸³⁸⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

838900 is an abundant number, since it is smaller than the sum of its proper divisors (981730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838900 is a wasteful number, since it uses less digits than its factorization.

838900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8403 (or 8396 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 838900 is about 915.9148432032. The cubic root of 838900 is about 94.3126753978.

The spelling of 838900 in words is "eight hundred thirty-eight thousand, nine hundred".