667934 has 8 divisors (see below), whose sum is σ = 1005888. Its totient is φ = 332640.

The previous prime is 667921. The next prime is 667949. The reversal of 667934 is 439766.

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

It is a super-2 number, since 2×667934² = 892271656712, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 667894 and 667903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (125736).

2⁶⁶⁷⁹³⁴ is an apocalyptic number.

667934 is a deficient number, since it is larger than the sum of its proper divisors (337954).

667934 is a wasteful number, since it uses less digits than its factorization.

667934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its digits is 27216, while the sum is 35.

The square root of 667934 is about 817.2722924460. The cubic root of 667934 is about 87.4133673156.

It can be divided in two parts, 66 and 7934, that added together give a cube (8000 = 20³).

The spelling of 667934 in words is "six hundred sixty-seven thousand, nine hundred thirty-four".