660834 has 12 divisors (see below), whose sum is σ = 1431846. Its totient is φ = 220272.

The previous prime is 660833. The next prime is 660851. The reversal of 660834 is 438066.

It can be written as a sum of positive squares in only one way, i.e., 455625 + 205209 = 675^2 + 453^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 660798 and 660807.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660834.

It is not an unprimeable number, because it can be changed into a prime (660833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18339 + ... + 18374.

2⁶⁶⁰⁸³⁴ is an apocalyptic number.

660834 is an abundant number, since it is smaller than the sum of its proper divisors (771012).

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

660834 is a wasteful number, since it uses less digits than its factorization.

660834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36721 (or 36718 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 660834 is about 812.9169699299. The cubic root of 660834 is about 87.1025346781.

The spelling of 660834 in words is "six hundred sixty thousand, eight hundred thirty-four".