85730170 has 8 divisors (see below), whose sum is σ = 154314324. Its totient is φ = 34292064.

The previous prime is 85730149. The next prime is 85730189. The reversal of 85730170 is 7103758.

It can be written as a sum of positive squares in 2 ways, for example, as 85729081 + 1089 = 9259^2 + 33^2 .

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

It is a super-3 number, since 3×85730170³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4286499 + ... + 4286518.

Almost surely, 2^85730170 is an apocalyptic number.

85730170 is a deficient number, since it is larger than the sum of its proper divisors (68584154).

85730170 is a wasteful number, since it uses less digits than its factorization.

85730170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8573024.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 85730170 is about 9259.0588074599. The cubic root of 85730170 is about 440.9383726869.

The spelling of 85730170 in words is "eighty-five million, seven hundred thirty thousand, one hundred seventy".