664283 has 4 divisors (see below), whose sum is σ = 667368. Its totient is φ = 661200.

The previous prime is 664273. The next prime is 664289. The reversal of 664283 is 382466.

664283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 664283 - 2¹⁸ = 402139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664289) 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, 1193 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (166842).

2⁶⁶⁴²⁸³ is an apocalyptic number.

664283 is a deficient number, since it is larger than the sum of its proper divisors (3085).

664283 is a wasteful number, since it uses less digits than its factorization.

664283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084.

The product of its digits is 6912, while the sum is 29.

The square root of 664283 is about 815.0355820453. The cubic root of 664283 is about 87.2538059056.

The spelling of 664283 in words is "six hundred sixty-four thousand, two hundred eighty-three".