9777255 has 16 divisors (see below), whose sum is σ = 15859680. Its totient is φ = 5142528.

The previous prime is 9777239. The next prime is 9777259. The reversal of 9777255 is 5527779.

9777255 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9777255 - 2⁴ = 9777239 is a prime.

9777255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9777259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3370 + ... + 5559.

It is an arithmetic number, because the mean of its divisors is an integer number (991230).

Almost surely, 2^9777255 is an apocalyptic number.

9777255 is a deficient number, since it is larger than the sum of its proper divisors (6082425).

9777255 is a wasteful number, since it uses less digits than its factorization.

9777255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010.

The product of its digits is 154350, while the sum is 42.

The square root of 9777255 is about 3126.8602463174. The cubic root of 9777255 is about 213.8318109598.

The spelling of 9777255 in words is "nine million, seven hundred seventy-seven thousand, two hundred fifty-five".