85189769 has 8 divisors (see below), whose sum is σ = 101592960. Its totient is φ = 69844896.

The previous prime is 85189757. The next prime is 85189777. The reversal of 85189769 is 96798158.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85189769 is a prime.

It is a super-2 number, since 2×85189769² = 14514593484546722, 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 85189769.

It is not an unprimeable number, because it can be changed into a prime (85189739) 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, 264404 + ... + 264725.

It is an arithmetic number, because the mean of its divisors is an integer number (12699120).

Almost surely, 2^85189769 is an apocalyptic number.

It is an amenable number.

85189769 is a deficient number, since it is larger than the sum of its proper divisors (16403191).

85189769 is a wasteful number, since it uses less digits than its factorization.

85189769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529159.

The product of its digits is 1088640, while the sum is 53.

The square root of 85189769 is about 9229.8303884741. The cubic root of 85189769 is about 440.0099326270.

It can be divided in two parts, 85189 and 769, that added together give a palindrome (85958).

The spelling of 85189769 in words is "eighty-five million, one hundred eighty-nine thousand, seven hundred sixty-nine".