812608860 has 96 divisors (see below), whose sum is σ = 2713439232. Its totient is φ = 177661440.

The previous prime is 812608847. The next prime is 812608903. The reversal of 812608860 is 68806218.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32401 + ... + 51720.

It is an arithmetic number, because the mean of its divisors is an integer number (28264992).

Almost surely, 2^812608860 is an apocalyptic number.

It is an amenable number.

812608860 is an abundant number, since it is smaller than the sum of its proper divisors (1900830372).

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

812608860 is a wasteful number, since it uses less digits than its factorization.

812608860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84163 (or 84161 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 812608860 is about 28506.2950942419. The cubic root of 812608860 is about 933.1694613089.

The spelling of 812608860 in words is "eight hundred twelve million, six hundred eight thousand, eight hundred sixty".