6859993 has 12 divisors (see below), whose sum is σ = 8330752. Its totient is φ = 5532480.

The previous prime is 6859991. The next prime is 6860011. The reversal of 6859993 is 3999586.

It is not a de Polignac number, because 6859993 - 2¹ = 6859991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328 + ... + 3718.

Almost surely, 2^6859993 is an apocalyptic number.

It is an amenable number.

6859993 is a deficient number, since it is larger than the sum of its proper divisors (1470759).

6859993 is a wasteful number, since it uses less digits than its factorization.

6859993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3415 counting only the distinct ones).

The product of its digits is 524880, while the sum is 49.

The square root of 6859993 is about 2619.1588344352. The cubic root of 6859993 is about 190.0091685326.

The spelling of 6859993 in words is "six million, eight hundred fifty-nine thousand, nine hundred ninety-three".