85987250 has 32 divisors (see below), whose sum is σ = 164913840. Its totient is φ = 33552000.

The previous prime is 85987243. The next prime is 85987289. The reversal of 85987250 is 5278958.

It can be written as a sum of positive squares in 8 ways, for example, as 923521 + 85063729 = 961^2 + 9223^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6056 + ... + 14444.

Almost surely, 2^85987250 is an apocalyptic number.

85987250 is a deficient number, since it is larger than the sum of its proper divisors (78926590).

85987250 is a wasteful number, since it uses less digits than its factorization.

85987250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447 (or 8437 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 85987250 is about 9272.9310360856. The cubic root of 85987250 is about 441.3786817695.

The spelling of 85987250 in words is "eighty-five million, nine hundred eighty-seven thousand, two hundred fifty".