870530869 has 8 divisors (see below), whose sum is σ = 945792792. Its totient is φ = 796454400.

The previous prime is 870530839. The next prime is 870530891. The reversal of 870530869 is 968035078.

It can be written as a sum of positive squares in 4 ways, for example, as 133679844 + 736851025 = 11562^2 + 27145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 870530869 - 2¹¹ = 870528821 is a prime.

It is a super-2 number, since 2×870530869² = 1515647987763790322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870530839) 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 7 ways as a sum of consecutive naturals, for example, 294832 + ... + 297769.

It is an arithmetic number, because the mean of its divisors is an integer number (118224099).

Almost surely, 2^870530869 is an apocalyptic number.

It is an amenable number.

870530869 is a deficient number, since it is larger than the sum of its proper divisors (75261923).

870530869 is a wasteful number, since it uses less digits than its factorization.

870530869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592727.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 870530869 is about 29504.7601074810. The cubic root of 870530869 is about 954.8344034575.

The spelling of 870530869 in words is "eight hundred seventy million, five hundred thirty thousand, eight hundred sixty-nine".