512447 has 4 divisors (see below), whose sum is σ = 551880. Its totient is φ = 473016.

The previous prime is 512443. The next prime is 512467. The reversal of 512447 is 744215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512447 - 2² = 512443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19697 + ... + 19722.

It is an arithmetic number, because the mean of its divisors is an integer number (137970).

2⁵¹²⁴⁴⁷ is an apocalyptic number.

512447 is a deficient number, since it is larger than the sum of its proper divisors (39433).

512447 is a wasteful number, since it uses less digits than its factorization.

512447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39432.

The product of its digits is 1120, while the sum is 23.

The square root of 512447 is about 715.8540354011. The cubic root of 512447 is about 80.0232744781.

It can be divided in two parts, 512 and 447, that added together give a palindrome (959).

The spelling of 512447 in words is "five hundred twelve thousand, four hundred forty-seven".