812877256 has 16 divisors (see below), whose sum is σ = 1524504240. Its totient is φ = 406342800.

The previous prime is 812877227. The next prime is 812877259. The reversal of 812877256 is 652778218.

It is a super-3 number, since 3×812877256³ (a number of 28 digits) contains 333 as substring.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34831 + ... + 53281.

It is an arithmetic number, because the mean of its divisors is an integer number (95281515).

Almost surely, 2^812877256 is an apocalyptic number.

It is an amenable number.

812877256 is a deficient number, since it is larger than the sum of its proper divisors (711626984).

812877256 is a wasteful number, since it uses less digits than its factorization.

812877256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23964 (or 23960 counting only the distinct ones).

The product of its digits is 376320, while the sum is 46.

The square root of 812877256 is about 28511.0023675072. The cubic root of 812877256 is about 933.2721886247.

The spelling of 812877256 in words is "eight hundred twelve million, eight hundred seventy-seven thousand, two hundred fifty-six".