85308189 has 8 divisors (see below), whose sum is σ = 114246240. Its totient is φ = 56621136.

The previous prime is 85308163. The next prime is 85308221. The reversal of 85308189 is 98180358.

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

It is not a de Polignac number, because 85308189 - 2⁷ = 85308061 is a prime.

It is a super-2 number, since 2×85308189² = 14554974220919442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85308189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85308589) 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, 61954 + ... + 63315.

It is an arithmetic number, because the mean of its divisors is an integer number (14280780).

Almost surely, 2^85308189 is an apocalyptic number.

It is an amenable number.

85308189 is a deficient number, since it is larger than the sum of its proper divisors (28938051).

85308189 is a wasteful number, since it uses less digits than its factorization.

85308189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125499.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 85308189 is about 9236.2432297986. The cubic root of 85308189 is about 440.2137202092.

The spelling of 85308189 in words is "eighty-five million, three hundred eight thousand, one hundred eighty-nine".