85369109 has 8 divisors (see below), whose sum is σ = 102699840. Its totient is φ = 69322176.

The previous prime is 85369091. The next prime is 85369129. The reversal of 85369109 is 90196358.

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

It is a de Polignac number, because none of the positive numbers 2^k-85369109 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 (85369129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320804 + ... + 321069.

It is an arithmetic number, because the mean of its divisors is an integer number (12837480).

Almost surely, 2^85369109 is an apocalyptic number.

It is an amenable number.

85369109 is a deficient number, since it is larger than the sum of its proper divisors (17330731).

85369109 is a wasteful number, since it uses less digits than its factorization.

85369109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641899.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 85369109 is about 9239.5405188786. The cubic root of 85369109 is about 440.3184832610.

The spelling of 85369109 in words is "eighty-five million, three hundred sixty-nine thousand, one hundred nine".