6825491 has 4 divisors (see below), whose sum is σ = 6927432. Its totient is φ = 6723552.

The previous prime is 6825463. The next prime is 6825509. The reversal of 6825491 is 1945286.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6825491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6825451) 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, 50870 + ... + 51003.

It is an arithmetic number, because the mean of its divisors is an integer number (1731858).

Almost surely, 2^6825491 is an apocalyptic number.

6825491 is a deficient number, since it is larger than the sum of its proper divisors (101941).

6825491 is a wasteful number, since it uses less digits than its factorization.

6825491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101940.

The product of its digits is 17280, while the sum is 35.

The square root of 6825491 is about 2612.5640662001. The cubic root of 6825491 is about 189.6900857161.

The spelling of 6825491 in words is "six million, eight hundred twenty-five thousand, four hundred ninety-one".