85986975 has 24 divisors (see below), whose sum is σ = 143558272. Its totient is φ = 45410400.

The previous prime is 85986973. The next prime is 85986983. The reversal of 85986975 is 57968958.

It is not a de Polignac number, because 85986975 - 2¹ = 85986973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85986973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2160 + ... + 13290.

Almost surely, 2^85986975 is an apocalyptic number.

85986975 is a deficient number, since it is larger than the sum of its proper divisors (57571297).

85986975 is a wasteful number, since it uses less digits than its factorization.

85986975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11247 (or 11242 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The square root of 85986975 is about 9272.9162079682. The cubic root of 85986975 is about 441.3782112375.

The spelling of 85986975 in words is "eighty-five million, nine hundred eighty-six thousand, nine hundred seventy-five".