667244 has 12 divisors (see below), whose sum is σ = 1205568. Its totient is φ = 322800.

The previous prime is 667243. The next prime is 667273. The reversal of 667244 is 442766.

667244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (667241) 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, 2567 + ... + 2814.

It is an arithmetic number, because the mean of its divisors is an integer number (100464).

2⁶⁶⁷²⁴⁴ is an apocalyptic number.

It is an amenable number.

667244 is a deficient number, since it is larger than the sum of its proper divisors (538324).

667244 is a wasteful number, since it uses less digits than its factorization.

667244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416 (or 5414 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 667244 is about 816.8500474383. The cubic root of 667244 is about 87.3832565538.

The spelling of 667244 in words is "six hundred sixty-seven thousand, two hundred forty-four".