8394540085 has 8 divisors (see below), whose sum is σ = 10075219416. Its totient is φ = 6714451200.

The previous prime is 8394540059. The next prime is 8394540103. The reversal of 8394540085 is 5800454938.

It can be written as a sum of positive squares in 4 ways, for example, as 3225217681 + 5169322404 = 56791^2 + 71898^2 .

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

It is not a de Polignac number, because 8394540085 - 2⁵ = 8394540053 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, 115704 + ... + 173713.

It is an arithmetic number, because the mean of its divisors is an integer number (1259402427).

Almost surely, 2^8394540085 is an apocalyptic number.

It is an amenable number.

8394540085 is a deficient number, since it is larger than the sum of its proper divisors (1680679331).

8394540085 is a wasteful number, since it uses less digits than its factorization.

8394540085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295223.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 8394540085 is about 91621.7227790441. The cubic root of 8394540085 is about 2032.3521866052.

The spelling of 8394540085 in words is "eight billion, three hundred ninety-four million, five hundred forty thousand, eighty-five".