6916661 has 4 divisors (see below), whose sum is σ = 7063872. Its totient is φ = 6769452.

The previous prime is 6916633. The next prime is 6916673. The reversal of 6916661 is 1666196.

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 6916661 - 2¹⁸ = 6654517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6916601) 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, 73535 + ... + 73628.

It is an arithmetic number, because the mean of its divisors is an integer number (1765968).

Almost surely, 2^6916661 is an apocalyptic number.

It is an amenable number.

6916661 is a deficient number, since it is larger than the sum of its proper divisors (147211).

6916661 is a wasteful number, since it uses less digits than its factorization.

6916661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147210.

The product of its digits is 11664, while the sum is 35.

The square root of 6916661 is about 2629.9545623451. The cubic root of 6916661 is about 190.5309341865.

The spelling of 6916661 in words is "six million, nine hundred sixteen thousand, six hundred sixty-one".