870536817 has 12 divisors (see below), whose sum is σ = 1260365184. Its totient is φ = 579008760.

The previous prime is 870536759. The next prime is 870536831. The reversal of 870536817 is 718635078.

It is not a de Polignac number, because 870536817 - 2¹⁰ = 870535793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870537817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108333 + ... + 116090.

It is an arithmetic number, because the mean of its divisors is an integer number (105030432).

Almost surely, 2^870536817 is an apocalyptic number.

It is an amenable number.

870536817 is a deficient number, since it is larger than the sum of its proper divisors (389828367).

870536817 is a wasteful number, since it uses less digits than its factorization.

870536817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224860 (or 224857 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 870536817 is about 29504.8609046035. The cubic root of 870536817 is about 954.8365781236.

The spelling of 870536817 in words is "eight hundred seventy million, five hundred thirty-six thousand, eight hundred seventeen".