870241563 has 28 divisors (see below), whose sum is σ = 1326945720. Its totient is φ = 570299616.

The previous prime is 870241513. The next prime is 870241571. The reversal of 870241563 is 365142078.

870241563 is a `hidden beast` number, since 8 + 70 + 24 + 1 + 563 = 666.

It is not a de Polignac number, because 870241563 - 2⁹ = 870241051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870241513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 32895 + ... + 53127.

Almost surely, 2^870241563 is an apocalyptic number.

870241563 is a deficient number, since it is larger than the sum of its proper divisors (456704157).

870241563 is an equidigital number, since it uses as much as digits as its factorization.

870241563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310 (or 20295 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 870241563 is about 29499.8569996534. The cubic root of 870241563 is about 954.7286174601.

The spelling of 870241563 in words is "eight hundred seventy million, two hundred forty-one thousand, five hundred sixty-three".