876999808 has 64 divisors (see below), whose sum is σ = 1875602520. Its totient is φ = 406978560.

The previous prime is 876999803. The next prime is 876999811. The reversal of 876999808 is 808999678.

It can be written as a sum of positive squares in 4 ways, for example, as 788037184 + 88962624 = 28072^2 + 9432^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 876999808.

It is not an unprimeable number, because it can be changed into a prime (876999803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156088 + ... + 161608.

Almost surely, 2^876999808 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 876999808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937801260).

876999808 is an abundant number, since it is smaller than the sum of its proper divisors (998602712).

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

876999808 is a wasteful number, since it uses less digits than its factorization.

876999808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625 (or 5613 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 64.

The square root of 876999808 is about 29614.1825482319. The cubic root of 876999808 is about 957.1937026994.

The spelling of 876999808 in words is "eight hundred seventy-six million, nine hundred ninety-nine thousand, eight hundred eight".