667793 has 8 divisors (see below), whose sum is σ = 803520. Its totient is φ = 542160.

The previous prime is 667781. The next prime is 667801. The reversal of 667793 is 397766.

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

It is a cyclic number.

It is not a de Polignac number, because 667793 - 2¹⁰ = 666769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378 + ... + 2643.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2⁶⁶⁷⁷⁹³ is an apocalyptic number.

It is an amenable number.

667793 is a deficient number, since it is larger than the sum of its proper divisors (135727).

667793 is a wasteful number, since it uses less digits than its factorization.

667793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047.

The product of its digits is 47628, while the sum is 38.

The square root of 667793 is about 817.1860253333. The cubic root of 667793 is about 87.4072159333.

The spelling of 667793 in words is "six hundred sixty-seven thousand, seven hundred ninety-three".