6810993 has 16 divisors (see below), whose sum is σ = 11532160. Its totient is φ = 3891888.

The previous prime is 6810989. The next prime is 6811003. The reversal of 6810993 is 3990186.

It is not a de Polignac number, because 6810993 - 2² = 6810989 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6810913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17830 + ... + 18207.

It is an arithmetic number, because the mean of its divisors is an integer number (720760).

Almost surely, 2^6810993 is an apocalyptic number.

6810993 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6810993 is a deficient number, since it is larger than the sum of its proper divisors (4721167).

6810993 is a wasteful number, since it uses less digits than its factorization.

6810993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36053 (or 36047 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 6810993 is about 2609.7879224182. The cubic root of 6810993 is about 189.5556838422. Note that the first 3 decimals are identical.

The spelling of 6810993 in words is "six million, eight hundred ten thousand, nine hundred ninety-three".