810147984 has 40 divisors (see below), whose sum is σ = 2093913600. Its totient is φ = 269916288.

The previous prime is 810147959. The next prime is 810147991. The reversal of 810147984 is 489741018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166417 + ... + 171215.

It is an arithmetic number, because the mean of its divisors is an integer number (52347840).

Almost surely, 2^810147984 is an apocalyptic number.

It is an amenable number.

810147984 is an abundant number, since it is smaller than the sum of its proper divisors (1283765616).

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

810147984 is a wasteful number, since it uses less digits than its factorization.

810147984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8327 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 810147984 is about 28463.0986366558. The cubic root of 810147984 is about 932.2265163165.

The spelling of 810147984 in words is "eight hundred ten million, one hundred forty-seven thousand, nine hundred eighty-four".