6945643 has 8 divisors (see below), whose sum is σ = 7289216. Its totient is φ = 6609600.

The previous prime is 6945641. The next prime is 6945671. The reversal of 6945643 is 3465496.

It is a happy number.

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 6945643 - 2¹ = 6945641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6945641) 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, 55 + ... + 3727.

It is an arithmetic number, because the mean of its divisors is an integer number (911152).

Almost surely, 2^6945643 is an apocalyptic number.

6945643 is a deficient number, since it is larger than the sum of its proper divisors (343573).

6945643 is a wasteful number, since it uses less digits than its factorization.

6945643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765.

The product of its digits is 77760, while the sum is 37.

The square root of 6945643 is about 2635.4587835897. The cubic root of 6945643 is about 190.7966824897.

The spelling of 6945643 in words is "six million, nine hundred forty-five thousand, six hundred forty-three".