838992 has 80 divisors (see below), whose sum is σ = 2714112. Its totient is φ = 216960.

The previous prime is 838991. The next prime is 838993. The reversal of 838992 is 299838.

It is an interprime number because it is at equal distance from previous prime (838991) and next prime (838993).

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 838992.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 838992.

It is not an unprimeable number, because it can be changed into a prime (838991) 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, 3583 + ... + 3809.

2⁸³⁸⁹⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357056).

838992 is an abundant number, since it is smaller than the sum of its proper divisors (1875120).

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

838992 is a wasteful number, since it uses less digits than its factorization.

838992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 250 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 838992 is about 915.9650648360. The cubic root of 838992 is about 94.3161229478.

It can be divided in two parts, 838 and 992, that added together give a triangular number (1830 = T₆₀).

The spelling of 838992 in words is "eight hundred thirty-eight thousand, nine hundred ninety-two".