6656319 has 12 divisors (see below), whose sum is σ = 9637056. Its totient is φ = 4427232.

The previous prime is 6656311. The next prime is 6656339. The reversal of 6656319 is 9136566.

It is not a de Polignac number, because 6656319 - 2³ = 6656311 is a prime.

It is a super-2 number, since 2×6656319² = 88613165259522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656311) 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 11 ways as a sum of consecutive naturals, for example, 7282 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (803088).

Almost surely, 2^6656319 is an apocalyptic number.

6656319 is a deficient number, since it is larger than the sum of its proper divisors (2980737).

6656319 is a wasteful number, since it uses less digits than its factorization.

6656319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1723 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 6656319 is about 2579.9843022778. The cubic root of 6656319 is about 188.1097800809.

The spelling of 6656319 in words is "six million, six hundred fifty-six thousand, three hundred nineteen".