870687500 has 42 divisors (see below), whose sum is σ = 1904741244. Its totient is φ = 348250000.

The previous prime is 870687497. The next prime is 870687509. The reversal of 870687500 is 5786078.

870687500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (870687509) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 55535 + ... + 69465.

It is an arithmetic number, because the mean of its divisors is an integer number (45350982).

Almost surely, 2^870687500 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 870687500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952370622).

870687500 is an abundant number, since it is smaller than the sum of its proper divisors (1034053744).

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

870687500 is an equidigital number, since it uses as much as digits as its factorization.

870687500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13965 (or 13938 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 870687500 is about 29507.4143225055. The cubic root of 870687500 is about 954.8916664847.

The spelling of 870687500 in words is "eight hundred seventy million, six hundred eighty-seven thousand, five hundred".