812877255 has 32 divisors (see below), whose sum is σ = 1447485120. Its totient is φ = 432823680.

The previous prime is 812877227. The next prime is 812877259. The reversal of 812877255 is 552778218.

812877255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 812877255 - 2⁵ = 812877223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 812877255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812877259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83545 + ... + 92765.

It is an arithmetic number, because the mean of its divisors is an integer number (45233910).

Almost surely, 2^812877255 is an apocalyptic number.

812877255 is a deficient number, since it is larger than the sum of its proper divisors (634607865).

812877255 is a wasteful number, since it uses less digits than its factorization.

812877255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888 (or 9882 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 812877255 is about 28511.0023499701. The cubic root of 812877255 is about 933.2721882420.

The spelling of 812877255 in words is "eight hundred twelve million, eight hundred seventy-seven thousand, two hundred fifty-five".