870989968 has 20 divisors (see below), whose sum is σ = 1786810860. Its totient is φ = 409877504.

The previous prime is 870989957. The next prime is 870989971. The reversal of 870989968 is 869989078.

It can be written as a sum of positive squares in 2 ways, for example, as 292683664 + 578306304 = 17108^2 + 24048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600813 + ... + 1601356.

It is an arithmetic number, because the mean of its divisors is an integer number (89340543).

Almost surely, 2^870989968 is an apocalyptic number.

It is an amenable number.

870989968 is an abundant number, since it is smaller than the sum of its proper divisors (915820892).

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

870989968 is a wasteful number, since it uses less digits than its factorization.

870989968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202194 (or 3202188 counting only the distinct ones).

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

The square root of 870989968 is about 29512.5391655818. The cubic root of 870989968 is about 955.0022269074.

The spelling of 870989968 in words is "eight hundred seventy million, nine hundred eighty-nine thousand, nine hundred sixty-eight".