6947993 has 8 divisors (see below), whose sum is σ = 7523208. Its totient is φ = 6378624.

The previous prime is 6947959. The next prime is 6948041. The reversal of 6947993 is 3997496.

It can be written as a sum of positive squares in 4 ways, for example, as 3948169 + 2999824 = 1987^2 + 1732^2 .

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 6947993 - 2¹⁰ = 6946969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6947903) 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, 1205 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (940401).

Almost surely, 2^6947993 is an apocalyptic number.

It is an amenable number.

6947993 is a deficient number, since it is larger than the sum of its proper divisors (575215).

6947993 is a wasteful number, since it uses less digits than its factorization.

6947993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923.

The product of its digits is 367416, while the sum is 47.

The square root of 6947993 is about 2635.9045885616. The cubic root of 6947993 is about 190.8181982153.

The spelling of 6947993 in words is "six million, nine hundred forty-seven thousand, nine hundred ninety-three".