6689156 has 12 divisors (see below), whose sum is σ = 12022668. Its totient is φ = 3254112.

The previous prime is 6689153. The next prime is 6689171. The reversal of 6689156 is 6519866.

It can be written as a sum of positive squares in 2 ways, for example, as 6150400 + 538756 = 2480^2 + 734^2 .

It is not an unprimeable number, because it can be changed into a prime (6689153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22451 + ... + 22746.

It is an arithmetic number, because the mean of its divisors is an integer number (1001889).

Almost surely, 2^6689156 is an apocalyptic number.

It is an amenable number.

6689156 is a deficient number, since it is larger than the sum of its proper divisors (5333512).

6689156 is a wasteful number, since it uses less digits than its factorization.

6689156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45238 (or 45236 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 6689156 is about 2586.3402715033. The cubic root of 6689156 is about 188.4186009766.

The spelling of 6689156 in words is "six million, six hundred eighty-nine thousand, one hundred fifty-six".