812104704 has 110 divisors (see below), whose sum is σ = 2425351104. Its totient is φ = 270673920.

The previous prime is 812104703. The next prime is 812104729. The reversal of 812104704 is 407401218.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812104703) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78049 + ... + 87839.

Almost surely, 2^812104704 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 812104704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212675552).

812104704 is an abundant number, since it is smaller than the sum of its proper divisors (1613246400).

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

812104704 is an equidigital number, since it uses as much as digits as its factorization.

812104704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9823 (or 9796 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 812104704 is about 28497.4508333640. The cubic root of 812104704 is about 932.9764367867.

The spelling of 812104704 in words is "eight hundred twelve million, one hundred four thousand, seven hundred four".