870550065 has 128 divisors (see below), whose sum is σ = 1954713600. Its totient is φ = 357073920.

The previous prime is 870550063. The next prime is 870550117. The reversal of 870550065 is 560055078.

870550065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870550065 - 2¹ = 870550063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870550063) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 862281 + ... + 863289.

It is an arithmetic number, because the mean of its divisors is an integer number (15271200).

Almost surely, 2^870550065 is an apocalyptic number.

It is an amenable number.

870550065 is an abundant number, since it is smaller than the sum of its proper divisors (1084163535).

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

870550065 is a wasteful number, since it uses less digits than its factorization.

870550065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 870550065 is about 29505.0854091291. The cubic root of 870550065 is about 954.8414217292.

The spelling of 870550065 in words is "eight hundred seventy million, five hundred fifty thousand, sixty-five".