85204705 has 8 divisors (see below), whose sum is σ = 102386304. Its totient is φ = 68070000.

The previous prime is 85204699. The next prime is 85204723. The reversal of 85204705 is 50740258.

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

It is not a de Polignac number, because 85204705 - 2⁷ = 85204577 is a prime.

It is a Duffinian 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, 7591 + ... + 15100.

It is an arithmetic number, because the mean of its divisors is an integer number (12798288).

Almost surely, 2^85204705 is an apocalyptic number.

It is an amenable number.

85204705 is a deficient number, since it is larger than the sum of its proper divisors (17181599).

85204705 is a wasteful number, since it uses less digits than its factorization.

85204705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23447.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 85204705 is about 9230.6394686392. The cubic root of 85204705 is about 440.0356462168.

It can be divided in two parts, 8520 and 4705, that added together give a square (13225 = 115²).

The spelling of 85204705 in words is "eighty-five million, two hundred four thousand, seven hundred five".