6506788 has 12 divisors (see below), whose sum is σ = 11779740. Its totient is φ = 3141152.

The previous prime is 6506779. The next prime is 6506789. The reversal of 6506788 is 8876056.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 4129024 = 1542^2 + 2032^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6506788.

It is not an unprimeable number, because it can be changed into a prime (6506789) 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, 27931 + ... + 28162.

It is an arithmetic number, because the mean of its divisors is an integer number (981645).

Almost surely, 2^6506788 is an apocalyptic number.

It is an amenable number.

6506788 is a deficient number, since it is larger than the sum of its proper divisors (5272952).

6506788 is a wasteful number, since it uses less digits than its factorization.

6506788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56126 (or 56124 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 6506788 is about 2550.8406457480. The cubic root of 6506788 is about 186.6905000748.

The spelling of 6506788 in words is "six million, five hundred six thousand, seven hundred eighty-eight".