85206905 has 8 divisors (see below), whose sum is σ = 116855232. Its totient is φ = 58427568.

The previous prime is 85206899. The next prime is 85206917. The reversal of 85206905 is 50960258.

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

It is a cyclic number.

It is not a de Polignac number, because 85206905 - 2⁴ = 85206889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 2434483 = 85206905 / (8 + 5 + 2 + 0 + 6 + 9 + 0 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217207 + ... + 1217276.

It is an arithmetic number, because the mean of its divisors is an integer number (14606904).

Almost surely, 2^85206905 is an apocalyptic number.

It is an amenable number.

85206905 is a deficient number, since it is larger than the sum of its proper divisors (31648327).

85206905 is a wasteful number, since it uses less digits than its factorization.

85206905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434495.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 85206905 is about 9230.7586362119. The cubic root of 85206905 is about 440.0394334493.

The spelling of 85206905 in words is "eighty-five million, two hundred six thousand, nine hundred five".