870530 has 16 divisors (see below), whose sum is σ = 1577664. Its totient is φ = 345840.

The previous prime is 870517. The next prime is 870533. The reversal of 870530 is 35078.

It is a junction number, because it is equal to n+sod(n) for n = 870496 and 870505.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870530.

It is not an unprimeable number, because it can be changed into a prime (870533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2465 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (98604).

2⁸⁷⁰⁵³⁰ is an apocalyptic number.

870530 is a deficient number, since it is larger than the sum of its proper divisors (707134).

870530 is a wasteful number, since it uses less digits than its factorization.

870530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 870530 is about 933.0219718742. The cubic root of 870530 is about 95.4834085739.

The spelling of 870530 in words is "eight hundred seventy thousand, five hundred thirty".