85189517 has 8 divisors (see below), whose sum is σ = 97416000. Its totient is φ = 72977184.

The previous prime is 85189487. The next prime is 85189529. The reversal of 85189517 is 71598158.

It is a happy number.

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

It is not a de Polignac number, because 85189517 - 2⁶ = 85189453 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 (85189537) 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, 18734 + ... + 22832.

It is an arithmetic number, because the mean of its divisors is an integer number (12177000).

Almost surely, 2^85189517 is an apocalyptic number.

It is an amenable number.

85189517 is a deficient number, since it is larger than the sum of its proper divisors (12226483).

85189517 is a wasteful number, since it uses less digits than its factorization.

85189517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075.

The product of its digits is 100800, while the sum is 44.

The square root of 85189517 is about 9229.8167370756. The cubic root of 85189517 is about 440.0094987619.

The spelling of 85189517 in words is "eighty-five million, one hundred eighty-nine thousand, five hundred seventeen".