812750008 has 64 divisors (see below), whose sum is σ = 1849521600. Its totient is φ = 326860800.

The previous prime is 812749967. The next prime is 812750017. The reversal of 812750008 is 800057218.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 380688 + ... + 382816.

It is an arithmetic number, because the mean of its divisors is an integer number (28898775).

Almost surely, 2^812750008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812750008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924760800).

812750008 is an abundant number, since it is smaller than the sum of its proper divisors (1036771592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812750008 is a wasteful number, since it uses less digits than its factorization.

812750008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 812750008 is about 28508.7707206046. The cubic root of 812750008 is about 933.2234878663.

The spelling of 812750008 in words is "eight hundred twelve million, seven hundred fifty thousand, eight".