810736992 has 384 divisors, whose sum is σ = 2794176000. Its totient is φ = 226437120.

The previous prime is 810736943. The next prime is 810737027. The reversal of 810736992 is 299637018.

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 63 ways as a sum of consecutive naturals, for example, 6188767 + ... + 6188897.

It is an arithmetic number, because the mean of its divisors is an integer number (7276500).

Almost surely, 2^810736992 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 810736992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397088000).

810736992 is an abundant number, since it is smaller than the sum of its proper divisors (1983439008).

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

810736992 is a wasteful number, since it uses less digits than its factorization.

810736992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 810736992 is about 28473.4436273521. The cubic root of 810736992 is about 932.4523828129.

The spelling of 810736992 in words is "eight hundred ten million, seven hundred thirty-six thousand, nine hundred ninety-two".