647283 has 16 divisors (see below), whose sum is σ = 1062656. Its totient is φ = 341280.

The previous prime is 647263. The next prime is 647293. The reversal of 647283 is 382746.

647283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 647283 - 2⁶ = 647219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 647283.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 647283.

It is not an unprimeable number, because it can be changed into a prime (647263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 913 + ... + 1458.

It is an arithmetic number, because the mean of its divisors is an integer number (66416).

2⁶⁴⁷²⁸³ is an apocalyptic number.

647283 is a deficient number, since it is larger than the sum of its proper divisors (415373).

647283 is a wasteful number, since it uses less digits than its factorization.

647283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 8064, while the sum is 30.

The square root of 647283 is about 804.5389984333. The cubic root of 647283 is about 86.5030459907.

It can be divided in two parts, 6472 and 83, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 647283 in words is "six hundred forty-seven thousand, two hundred eighty-three".