6946561 has 4 divisors (see below), whose sum is σ = 6955312. Its totient is φ = 6937812.

The previous prime is 6946559. The next prime is 6946613. The reversal of 6946561 is 1656496.

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.

It is a cyclic number.

It is not a de Polignac number, because 6946561 - 2¹ = 6946559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6946561.

It is not an unprimeable number, because it can be changed into a prime (6946501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3051 + ... + 4816.

It is an arithmetic number, because the mean of its divisors is an integer number (1738828).

Almost surely, 2^6946561 is an apocalyptic number.

It is an amenable number.

6946561 is a deficient number, since it is larger than the sum of its proper divisors (8751).

6946561 is an equidigital number, since it uses as much as digits as its factorization.

6946561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750.

The product of its digits is 38880, while the sum is 37.

The square root of 6946561 is about 2635.6329410599. The cubic root of 6946561 is about 190.8050879337.

The spelling of 6946561 in words is "six million, nine hundred forty-six thousand, five hundred sixty-one".