85975189 has 4 divisors (see below), whose sum is σ = 87974656. Its totient is φ = 83975724.

The previous prime is 85975177. The next prime is 85975193. The reversal of 85975189 is 98157958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85975189 - 2¹⁷ = 85844117 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 (85975159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999669 + ... + 999754.

It is an arithmetic number, because the mean of its divisors is an integer number (21993664).

Almost surely, 2^85975189 is an apocalyptic number.

It is an amenable number.

85975189 is a deficient number, since it is larger than the sum of its proper divisors (1999467).

85975189 is a wasteful number, since it uses less digits than its factorization.

85975189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999466.

The product of its digits is 907200, while the sum is 52.

The square root of 85975189 is about 9272.2806795308. The cubic root of 85975189 is about 441.3580441471.

The spelling of 85975189 in words is "eighty-five million, nine hundred seventy-five thousand, one hundred eighty-nine".