669893 has 8 divisors (see below), whose sum is σ = 775488. Its totient is φ = 566784.

The previous prime is 669887. The next prime is 669901. The reversal of 669893 is 398966.

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 669893 - 2⁸ = 669637 is a prime.

It is a super-3 number, since 3×669893³ = 901856778333794871, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 669893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669853) 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, 5 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (96936).

2⁶⁶⁹⁸⁹³ is an apocalyptic number.

It is an amenable number.

669893 is a deficient number, since it is larger than the sum of its proper divisors (105595).

669893 is a wasteful number, since it uses less digits than its factorization.

669893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243.

The product of its digits is 69984, while the sum is 41.

The square root of 669893 is about 818.4699139248. The cubic root of 669893 is about 87.4987428391.

The spelling of 669893 in words is "six hundred sixty-nine thousand, eight hundred ninety-three".