667272 has 16 divisors (see below), whose sum is σ = 1668240. Its totient is φ = 222416.

The previous prime is 667243. The next prime is 667273. The reversal of 667272 is 272766.

It is not an unprimeable number, because it can be changed into a prime (667273) by changing a digit.

667272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13878 + ... + 13925.

It is an arithmetic number, because the mean of its divisors is an integer number (104265).

2⁶⁶⁷²⁷² is an apocalyptic number.

It is an amenable number.

667272 is an abundant number, since it is smaller than the sum of its proper divisors (1000968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667272 is a wasteful number, since it uses less digits than its factorization.

667272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27812 (or 27808 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 667272 is about 816.8671862671. The cubic root of 667272 is about 87.3844788438.

It can be divided in two parts, 667 and 272, that added together give a palindrome (939).

The spelling of 667272 in words is "six hundred sixty-seven thousand, two hundred seventy-two".