6751643 has 4 divisors (see below), whose sum is σ = 6792240. Its totient is φ = 6711048.

The previous prime is 6751573. The next prime is 6751651. The reversal of 6751643 is 3461576.

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 6751643 - 2¹² = 6747547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6751243) 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, 20048 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (1698060).

Almost surely, 2^6751643 is an apocalyptic number.

6751643 is a deficient number, since it is larger than the sum of its proper divisors (40597).

6751643 is a wasteful number, since it uses less digits than its factorization.

6751643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40596.

The product of its digits is 15120, while the sum is 32.

The square root of 6751643 is about 2598.3923876120. The cubic root of 6751643 is about 189.0034899461.

The spelling of 6751643 in words is "six million, seven hundred fifty-one thousand, six hundred forty-three".