668283 has 24 divisors (see below), whose sum is σ = 1123584. Its totient is φ = 345840.

The previous prime is 668273. The next prime is 668303. The reversal of 668283 is 382866.

It is a de Polignac number, because none of the positive numbers 2^k-668283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (668203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2410 + ... + 2672.

It is an arithmetic number, because the mean of its divisors is an integer number (46816).

2⁶⁶⁸²⁸³ is an apocalyptic number.

668283 is a deficient number, since it is larger than the sum of its proper divisors (455301).

668283 is a wasteful number, since it uses less digits than its factorization.

668283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 284 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 668283 is about 817.4857796928. The cubic root of 668283 is about 87.4285893551.

The spelling of 668283 in words is "six hundred sixty-eight thousand, two hundred eighty-three".