6830561 has 4 divisors (see below), whose sum is σ = 6836400. Its totient is φ = 6824724.

The previous prime is 6830539. The next prime is 6830567. The reversal of 6830561 is 1650386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1650386 = 2 ⋅825193.

It is a cyclic number.

It is not a de Polignac number, because 6830561 - 2⁶ = 6830497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6830567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 3728.

It is an arithmetic number, because the mean of its divisors is an integer number (1709100).

Almost surely, 2^6830561 is an apocalyptic number.

It is an amenable number.

6830561 is a deficient number, since it is larger than the sum of its proper divisors (5839).

6830561 is a wasteful number, since it uses less digits than its factorization.

6830561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5838.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6830561 is about 2613.5341972127. The cubic root of 6830561 is about 189.7370415912.

The spelling of 6830561 in words is "six million, eight hundred thirty thousand, five hundred sixty-one".