6694943 has 4 divisors (see below), whose sum is σ = 6704880. Its totient is φ = 6685008.

The previous prime is 6694937. The next prime is 6694949. The reversal of 6694943 is 3494966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3494966 = 2 ⋅1747483.

It is an interprime number because it is at equal distance from previous prime (6694937) and next prime (6694949).

It is a cyclic number.

It is not a de Polignac number, because 6694943 - 2⁶ = 6694879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6694943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (1676220).

Almost surely, 2^6694943 is an apocalyptic number.

6694943 is a deficient number, since it is larger than the sum of its proper divisors (9937).

6694943 is an equidigital number, since it uses as much as digits as its factorization.

6694943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936.

The product of its digits is 139968, while the sum is 41.

The square root of 6694943 is about 2587.4587919424. The cubic root of 6694943 is about 188.4729209413.

The spelling of 6694943 in words is "six million, six hundred ninety-four thousand, nine hundred forty-three".