6656936 has 72 divisors (see below), whose sum is σ = 15445290. Its totient is φ = 2671680.

The previous prime is 6656927. The next prime is 6656953. The reversal of 6656936 is 6396566.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 256036 = 2530^2 + 506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6656893 and 6656902.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 289421 + ... + 289443.

Almost surely, 2^6656936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7722645).

6656936 is an abundant number, since it is smaller than the sum of its proper divisors (8788354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6656936 is a wasteful number, since it uses less digits than its factorization.

6656936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 49 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 6656936 is about 2580.1038738779. The cubic root of 6656936 is about 188.1155921095.

It can be divided in two parts, 6656 and 936, that multiplied together give a square (6230016 = 2496²).

The spelling of 6656936 in words is "six million, six hundred fifty-six thousand, nine hundred thirty-six".