667927 has 8 divisors (see below), whose sum is σ = 725760. Its totient is φ = 611040.

The previous prime is 667921. The next prime is 667949. The reversal of 667927 is 729766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667927 is a prime.

It is a super-2 number, since 2×667927² = 892252954658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2⁶⁶⁷⁹²⁷ is an apocalyptic number.

667927 is a deficient number, since it is larger than the sum of its proper divisors (57833).

667927 is a wasteful number, since it uses less digits than its factorization.

667927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its digits is 31752, while the sum is 37.

The square root of 667927 is about 817.2680098964. The cubic root of 667927 is about 87.4130619482.

The spelling of 667927 in words is "six hundred sixty-seven thousand, nine hundred twenty-seven".