85945187 has 8 divisors (see below), whose sum is σ = 87960576. Its totient is φ = 83937672.

The previous prime is 85945147. The next prime is 85945193. The reversal of 85945187 is 78154958.

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

It is a cyclic number.

It is not a de Polignac number, because 85945187 - 2¹² = 85941091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85945147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24038 + ... + 27380.

It is an arithmetic number, because the mean of its divisors is an integer number (10995072).

Almost surely, 2^85945187 is an apocalyptic number.

85945187 is a deficient number, since it is larger than the sum of its proper divisors (2015389).

85945187 is a wasteful number, since it uses less digits than its factorization.

85945187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its digits is 403200, while the sum is 47.

The square root of 85945187 is about 9270.6627055459. The cubic root of 85945187 is about 441.3066992387.

The spelling of 85945187 in words is "eighty-five million, nine hundred forty-five thousand, one hundred eighty-seven".