6724191 has 4 divisors (see below), whose sum is σ = 8965592. Its totient is φ = 4482792.

The previous prime is 6724189. The next prime is 6724219. The reversal of 6724191 is 1914276.

It is a happy number.

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

It is not a de Polignac number, because 6724191 - 2¹ = 6724189 is a prime.

It is a D-number.

It is a Duffinian number.

6724191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6724111) 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, 1120696 + ... + 1120701.

It is an arithmetic number, because the mean of its divisors is an integer number (2241398).

Almost surely, 2^6724191 is an apocalyptic number.

6724191 is a deficient number, since it is larger than the sum of its proper divisors (2241401).

6724191 is a wasteful number, since it uses less digits than its factorization.

6724191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241400.

The product of its digits is 3024, while the sum is 30.

The square root of 6724191 is about 2593.1045100420. The cubic root of 6724191 is about 188.7469809321.

The spelling of 6724191 in words is "six million, seven hundred twenty-four thousand, one hundred ninety-one".