834545 has 4 divisors (see below), whose sum is σ = 1001460. Its totient is φ = 667632.

The previous prime is 834527. The next prime is 834569. The reversal of 834545 is 545438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545438 = 2 ⋅272719.

It can be written as a sum of positive squares in 2 ways, for example, as 361201 + 473344 = 601^2 + 688^2 .

It is a cyclic number.

It is not a de Polignac number, because 834545 - 2¹² = 830449 is a prime.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83450 + ... + 83459.

It is an arithmetic number, because the mean of its divisors is an integer number (250365).

2⁸³⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

834545 is a deficient number, since it is larger than the sum of its proper divisors (166915).

834545 is a wasteful number, since it uses less digits than its factorization.

834545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166914.

The product of its digits is 9600, while the sum is 29.

The square root of 834545 is about 913.5343452766. The cubic root of 834545 is about 94.1491896804.

The spelling of 834545 in words is "eight hundred thirty-four thousand, five hundred forty-five".