85207805 has 8 divisors (see below), whose sum is σ = 102325344. Its totient is φ = 68115600.

The previous prime is 85207783. The next prime is 85207877. The reversal of 85207805 is 50870258.

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

It is not a de Polignac number, because 85207805 - 2¹² = 85203709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 13220.

It is an arithmetic number, because the mean of its divisors is an integer number (12790668).

Almost surely, 2^85207805 is an apocalyptic number.

It is an amenable number.

85207805 is a deficient number, since it is larger than the sum of its proper divisors (17117539).

85207805 is a wasteful number, since it uses less digits than its factorization.

85207805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 85207805 is about 9230.8073861391. The cubic root of 85207805 is about 440.0409827529.

The spelling of 85207805 in words is "eighty-five million, two hundred seven thousand, eight hundred five".