85702805 has 8 divisors (see below), whose sum is σ = 103031352. Its totient is φ = 68436928.

The previous prime is 85702781. The next prime is 85702811. The reversal of 85702805 is 50820758.

It can be written as a sum of positive squares in 4 ways, for example, as 2053489 + 83649316 = 1433^2 + 9146^2 .

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 85702805 - 2¹² = 85698709 is a prime.

It is a Duffinian 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, 12602 + ... + 18171.

It is an arithmetic number, because the mean of its divisors is an integer number (12878919).

Almost surely, 2^85702805 is an apocalyptic number.

It is an amenable number.

85702805 is a deficient number, since it is larger than the sum of its proper divisors (17328547).

85702805 is a wasteful number, since it uses less digits than its factorization.

85702805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31335.

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

The square root of 85702805 is about 9257.5809475262. The cubic root of 85702805 is about 440.8914519718.

The spelling of 85702805 in words is "eighty-five million, seven hundred two thousand, eight hundred five".