6656769 has 16 divisors (see below), whose sum is σ = 11271040. Its totient is φ = 3803760.

The previous prime is 6656759. The next prime is 6656779. The reversal of 6656769 is 9676566.

It is an interprime number because it is at equal distance from previous prime (6656759) and next prime (6656779).

It is not a de Polignac number, because 6656769 - 2⁴ = 6656753 is a prime.

It is a super-2 number, since 2×6656769² = 88625147038722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6656759) 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, 17422 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (704440).

Almost surely, 2^6656769 is an apocalyptic number.

It is an amenable number.

6656769 is a deficient number, since it is larger than the sum of its proper divisors (4614271).

6656769 is a wasteful number, since it uses less digits than its factorization.

6656769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35237 (or 35231 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 6656769 is about 2580.0715106369. The cubic root of 6656769 is about 188.1140190351.

The spelling of 6656769 in words is "six million, six hundred fifty-six thousand, seven hundred sixty-nine".