512705 has 12 divisors (see below), whose sum is σ = 640956. Its totient is φ = 393600.

The previous prime is 512683. The next prime is 512711. The reversal of 512705 is 507215.

It can be written as a sum of positive squares in 6 ways, for example, as 332929 + 179776 = 577^2 + 424^2 .

It is not a de Polignac number, because 512705 - 2⁶ = 512641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8375 + ... + 8435.

It is an arithmetic number, because the mean of its divisors is an integer number (53413).

2⁵¹²⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

512705 is a deficient number, since it is larger than the sum of its proper divisors (128251).

512705 is an equidigital number, since it uses as much as digits as its factorization.

512705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 512705 is about 716.0342170595. The cubic root of 512705 is about 80.0367019095.

The spelling of 512705 in words is "five hundred twelve thousand, seven hundred five".