810826104 has 64 divisors (see below), whose sum is σ = 2234211840. Its totient is φ = 243164160.

The previous prime is 810826099. The next prime is 810826123. The reversal of 810826104 is 401628018.

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, 9777 + ... + 41439.

It is an arithmetic number, because the mean of its divisors is an integer number (34909560).

Almost surely, 2^810826104 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 810826104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1117105920).

810826104 is an abundant number, since it is smaller than the sum of its proper divisors (1423385736).

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

810826104 is a wasteful number, since it uses less digits than its factorization.

810826104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31780 (or 31776 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 810826104 is about 28475.0084108855. The cubic root of 810826104 is about 932.4865450025.

The spelling of 810826104 in words is "eight hundred ten million, eight hundred twenty-six thousand, one hundred four".