6749791 has 4 divisors (see below), whose sum is σ = 6762184. Its totient is φ = 6737400.

The previous prime is 6749783. The next prime is 6749801. The reversal of 6749791 is 1979476.

It is a happy number.

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 6749791 - 2³ = 6749783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (1690546).

Almost surely, 2^6749791 is an apocalyptic number.

6749791 is a deficient number, since it is larger than the sum of its proper divisors (12393).

6749791 is a wasteful number, since it uses less digits than its factorization.

6749791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392.

The product of its digits is 95256, while the sum is 43.

The square root of 6749791 is about 2598.0359889732. The cubic root of 6749791 is about 188.9862069197.

The spelling of 6749791 in words is "six million, seven hundred forty-nine thousand, seven hundred ninety-one".