667893 has 8 divisors (see below), whose sum is σ = 898048. Its totient is φ = 441504.

The previous prime is 667883. The next prime is 667903. The reversal of 667893 is 398766.

667893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (667883) and next prime (667903).

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

It is not a de Polignac number, because 667893 - 2⁵ = 667861 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667883) 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, 496 + ... + 1257.

It is an arithmetic number, because the mean of its divisors is an integer number (112256).

2⁶⁶⁷⁸⁹³ is an apocalyptic number.

It is an amenable number.

667893 is a deficient number, since it is larger than the sum of its proper divisors (230155).

667893 is a wasteful number, since it uses less digits than its factorization.

667893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883.

The product of its digits is 54432, while the sum is 39.

The square root of 667893 is about 817.2472086217. The cubic root of 667893 is about 87.4115787050.

The spelling of 667893 in words is "six hundred sixty-seven thousand, eight hundred ninety-three".