85945189 has 16 divisors (see below), whose sum is σ = 99305280. Its totient is φ = 73560960.

The previous prime is 85945147. The next prime is 85945193. The reversal of 85945189 is 98154958.

It is not a de Polignac number, because 85945189 - 2¹¹ = 85943141 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 (85945109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34969 + ... + 37345.

It is an arithmetic number, because the mean of its divisors is an integer number (6206580).

Almost surely, 2^85945189 is an apocalyptic number.

It is an amenable number.

85945189 is a deficient number, since it is larger than the sum of its proper divisors (13360091).

85945189 is a wasteful number, since it uses less digits than its factorization.

85945189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its digits is 518400, while the sum is 49.

The square root of 85945189 is about 9270.6628134131. The cubic root of 85945189 is about 441.3067026619.

The spelling of 85945189 in words is "eighty-five million, nine hundred forty-five thousand, one hundred eighty-nine".