6930561 has 16 divisors (see below), whose sum is σ = 10183680. Its totient is φ = 4157520.

The previous prime is 6930557. The next prime is 6930563. The reversal of 6930561 is 1650396.

It is a happy number.

It is not a de Polignac number, because 6930561 - 2² = 6930557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6930563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (636480).

Almost surely, 2^6930561 is an apocalyptic number.

It is an amenable number.

6930561 is a deficient number, since it is larger than the sum of its proper divisors (3253119).

6930561 is a wasteful number, since it uses less digits than its factorization.

6930561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 6930561 is about 2632.5958672003. The cubic root of 6930561 is about 190.6584816581.

The spelling of 6930561 in words is "six million, nine hundred thirty thousand, five hundred sixty-one".