834920 has 16 divisors (see below), whose sum is σ = 1878660. Its totient is φ = 333952.

The previous prime is 834913. The next prime is 834941. The reversal of 834920 is 29438.

It can be written as a sum of positive squares in 2 ways, for example, as 813604 + 21316 = 902^2 + 146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 834920.

It is an unprimeable number.

834920 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 3 ways as a sum of consecutive naturals, for example, 10397 + ... + 10476.

2⁸³⁴⁹²⁰ is an apocalyptic number.

It is an amenable number.

834920 is an abundant number, since it is smaller than the sum of its proper divisors (1043740).

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

834920 is a wasteful number, since it uses less digits than its factorization.

834920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20884 (or 20880 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 834920 is about 913.7395690239. The cubic root of 834920 is about 94.1632894430.

The spelling of 834920 in words is "eight hundred thirty-four thousand, nine hundred twenty".