6694143 has 4 divisors (see below), whose sum is σ = 8925528. Its totient is φ = 4462760.

The previous prime is 6694133. The next prime is 6694147. The reversal of 6694143 is 3414966.

6694143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6694143 - 2⁸ = 6693887 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115688 + ... + 1115693.

It is an arithmetic number, because the mean of its divisors is an integer number (2231382).

Almost surely, 2^6694143 is an apocalyptic number.

6694143 is a deficient number, since it is larger than the sum of its proper divisors (2231385).

6694143 is a wasteful number, since it uses less digits than its factorization.

6694143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231384.

The product of its digits is 15552, while the sum is 33.

The square root of 6694143 is about 2587.3041954900. The cubic root of 6694143 is about 188.4654135663.

The spelling of 6694143 in words is "six million, six hundred ninety-four thousand, one hundred forty-three".