808761000 has 128 divisors (see below), whose sum is σ = 2559548160. Its totient is φ = 212576000.

The previous prime is 808760989. The next prime is 808761053. The reversal of 808761000 is 167808.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 211102 + ... + 214898.

It is an arithmetic number, because the mean of its divisors is an integer number (19996470).

Almost surely, 2^808761000 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 808761000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279774080).

808761000 is an abundant number, since it is smaller than the sum of its proper divisors (1750787160).

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

808761000 is a wasteful number, since it uses less digits than its factorization.

808761000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3878 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 808761000 is about 28438.7236000493. The cubic root of 808761000 is about 931.6942177493.

The spelling of 808761000 in words is "eight hundred eight million, seven hundred sixty-one thousand".