6740591 has 8 divisors (see below), whose sum is σ = 7919184. Its totient is φ = 5656320.

The previous prime is 6740543. The next prime is 6740597. The reversal of 6740591 is 1950476.

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 6740591 - 2¹⁸ = 6478447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740597) 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, 23426 + ... + 23711.

It is an arithmetic number, because the mean of its divisors is an integer number (989898).

Almost surely, 2^6740591 is an apocalyptic number.

6740591 is a deficient number, since it is larger than the sum of its proper divisors (1178593).

6740591 is a wasteful number, since it uses less digits than its factorization.

6740591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47161.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 6740591 is about 2596.2648170015. The cubic root of 6740591 is about 188.9003048207.

The spelling of 6740591 in words is "six million, seven hundred forty thousand, five hundred ninety-one".