512816 has 10 divisors (see below), whose sum is σ = 993612. Its totient is φ = 256400.

The previous prime is 512803. The next prime is 512819. The reversal of 512816 is 618215.

512816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 512791 and 512800.

It is not an unprimeable number, because it can be changed into a prime (512819) by changing a digit.

512816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010 + ... + 16041.

2⁵¹²⁸¹⁶ is an apocalyptic number.

It is an amenable number.

512816 is a deficient number, since it is larger than the sum of its proper divisors (480796).

512816 is a wasteful number, since it uses less digits than its factorization.

512816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32059 (or 32053 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 512816 is about 716.1117231271. Note that the first 3 decimals coincide. The cubic root of 512816 is about 80.0424774418.

It can be divided in two parts, 5 and 12816, that added together give a palindrome (12821).

The spelling of 512816 in words is "five hundred twelve thousand, eight hundred sixteen".