85988475 has 18 divisors (see below), whose sum is σ = 154015316. Its totient is φ = 45860400.

The previous prime is 85988473. The next prime is 85988489. The reversal of 85988475 is 57488958.

85988475 is a `hidden beast` number, since 8 + 598 + 8 + 47 + 5 = 666.

It is not a de Polignac number, because 85988475 - 2¹ = 85988473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85988473) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 190861 + ... + 191310.

Almost surely, 2^85988475 is an apocalyptic number.

85988475 is a deficient number, since it is larger than the sum of its proper divisors (68026841).

85988475 is a wasteful number, since it uses less digits than its factorization.

85988475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382187 (or 382179 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The square root of 85988475 is about 9272.9970883205. The cubic root of 85988475 is about 441.3807777637.

Adding to 85988475 its sum of digits (54), we get a square (85988529 = 9273²).

The spelling of 85988475 in words is "eighty-five million, nine hundred eighty-eight thousand, four hundred seventy-five".