838830 has 16 divisors (see below), whose sum is σ = 2013264. Its totient is φ = 223680.

The previous prime is 838813. The next prime is 838837. The reversal of 838830 is 38838.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 27961 = 838830 / (8 + 3 + 8 + 8 + 3 + 0).

It is an Ulam number.

It is a congruent number.

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

838830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 13951 + ... + 14010.

It is an arithmetic number, because the mean of its divisors is an integer number (125829).

2⁸³⁸⁸³⁰ is an apocalyptic number.

838830 is an abundant number, since it is smaller than the sum of its proper divisors (1174434).

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

838830 is a wasteful number, since it uses less digits than its factorization.

838830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27971.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 838830 is about 915.8766292465. The cubic root of 838830 is about 94.3100520932.

The spelling of 838830 in words is "eight hundred thirty-eight thousand, eight hundred thirty".