834505 has 16 divisors (see below), whose sum is σ = 1160064. Its totient is φ = 564480.

The previous prime is 834503. The next prime is 834511. The reversal of 834505 is 505438.

It is a happy number.

It is not a de Polignac number, because 834505 - 2¹ = 834503 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 834505.

It is not an unprimeable number, because it can be changed into a prime (834503) 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, 3850 + ... + 4060.

It is an arithmetic number, because the mean of its divisors is an integer number (72504).

2⁸³⁴⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

834505 is a deficient number, since it is larger than the sum of its proper divisors (325559).

834505 is a wasteful number, since it uses less digits than its factorization.

834505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 834505 is about 913.5124520224. The cubic root of 834505 is about 94.1476854564.

The spelling of 834505 in words is "eight hundred thirty-four thousand, five hundred five".