512685 has 12 divisors (see below), whose sum is σ = 888732. Its totient is φ = 273408.

The previous prime is 512683. The next prime is 512711. The reversal of 512685 is 586215.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 227529 = 534^2 + 477^2 .

It is not a de Polignac number, because 512685 - 2¹ = 512683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5652 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (74061).

2⁵¹²⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

512685 is a deficient number, since it is larger than the sum of its proper divisors (376047).

512685 is a wasteful number, since it uses less digits than its factorization.

512685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404 (or 11401 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 512685 is about 716.0202511103. The cubic root of 512685 is about 80.0356611845.

The spelling of 512685 in words is "five hundred twelve thousand, six hundred eighty-five".