85959609 has 8 divisors (see below), whose sum is σ = 114716832. Its totient is φ = 57254400.

The previous prime is 85959581. The next prime is 85959611. The reversal of 85959609 is 90695958.

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

It is not a de Polignac number, because 85959609 - 2¹⁶ = 85894073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85959649) 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, 8967 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (14339604).

Almost surely, 2^85959609 is an apocalyptic number.

It is an amenable number.

85959609 is a deficient number, since it is larger than the sum of its proper divisors (28757223).

85959609 is a wasteful number, since it uses less digits than its factorization.

85959609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26007.

The product of its (nonzero) digits is 874800, while the sum is 51.

The square root of 85959609 is about 9271.4405029639. The cubic root of 85959609 is about 441.3313822934.

It can be divided in two parts, 85959 and 609, that added together give a palindrome (86568).

The spelling of 85959609 in words is "eighty-five million, nine hundred fifty-nine thousand, six hundred nine".