85988530 has 16 divisors (see below), whose sum is σ = 155568600. Its totient is φ = 34220032.

The previous prime is 85988527. The next prime is 85988543. The reversal of 85988530 is 3588958.

It is a Cunningham number, because it is equal to 9273²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 84254041 + 1734489 = 9179^2 + 1317^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19855 + ... + 23794.

Almost surely, 2^85988530 is an apocalyptic number.

85988530 is a deficient number, since it is larger than the sum of its proper divisors (69580070).

85988530 is a wasteful number, since it uses less digits than its factorization.

85988530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43853.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 85988530 is about 9273.0000539200. Note that the first 4 decimals coincide. The cubic root of 85988530 is about 441.3808718691.

The spelling of 85988530 in words is "eighty-five million, nine hundred eighty-eight thousand, five hundred thirty".