85689505 has 8 divisors (see below), whose sum is σ = 112175424. Its totient is φ = 62319600.

The previous prime is 85689481. The next prime is 85689523. The reversal of 85689505 is 50598658.

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 85689505 - 2⁵ = 85689473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 778941 + ... + 779050.

It is an arithmetic number, because the mean of its divisors is an integer number (14021928).

Almost surely, 2^85689505 is an apocalyptic number.

It is an amenable number.

85689505 is a deficient number, since it is larger than the sum of its proper divisors (26485919).

85689505 is a wasteful number, since it uses less digits than its factorization.

85689505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558007.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 85689505 is about 9256.8625894522. The cubic root of 85689505 is about 440.8686438515.

The spelling of 85689505 in words is "eighty-five million, six hundred eighty-nine thousand, five hundred five".