8530705 has 4 divisors (see below), whose sum is σ = 10236852. Its totient is φ = 6824560.

The previous prime is 8530699. The next prime is 8530733. The reversal of 8530705 is 5070358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5070358 = 2 ⋅2535179.

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 4032064 = 2121^2 + 2008^2 .

It is not a de Polignac number, because 8530705 - 2¹¹ = 8528657 is a prime.

It is a Duffinian number.

8530705 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853066 + ... + 853075.

It is an arithmetic number, because the mean of its divisors is an integer number (2559213).

Almost surely, 2^8530705 is an apocalyptic number.

It is an amenable number.

8530705 is a deficient number, since it is larger than the sum of its proper divisors (1706147).

8530705 is a wasteful number, since it uses less digits than its factorization.

8530705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706146.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 8530705 is about 2920.7370645096. The cubic root of 8530705 is about 204.3281994357.

The spelling of 8530705 in words is "eight million, five hundred thirty thousand, seven hundred five".