85689807 has 16 divisors (see below), whose sum is σ = 130725120. Its totient is φ = 48909312.

The previous prime is 85689803. The next prime is 85689833. The reversal of 85689807 is 70898658.

It is a happy number.

It is not a de Polignac number, because 85689807 - 2² = 85689803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85689807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85689803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22444 + ... + 25982.

It is an arithmetic number, because the mean of its divisors is an integer number (8170320).

Almost surely, 2^85689807 is an apocalyptic number.

85689807 is a deficient number, since it is larger than the sum of its proper divisors (45035313).

85689807 is a wasteful number, since it uses less digits than its factorization.

85689807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 85689807 is about 9256.8789016601. The cubic root of 85689807 is about 440.8691617763.

The spelling of 85689807 in words is "eighty-five million, six hundred eighty-nine thousand, eight hundred seven".