8604681385 has 4 divisors (see below), whose sum is σ = 10325617668. Its totient is φ = 6883745104.

The previous prime is 8604681361. The next prime is 8604681401. The reversal of 8604681385 is 5831864068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5726251584 + 2878429801 = 75672^2 + 53651^2 .

It is a cyclic number.

It is not a de Polignac number, because 8604681385 - 2¹⁷ = 8604550313 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860468134 + ... + 860468143.

It is an arithmetic number, because the mean of its divisors is an integer number (2581404417).

Almost surely, 2^8604681385 is an apocalyptic number.

It is an amenable number.

8604681385 is a deficient number, since it is larger than the sum of its proper divisors (1720936283).

8604681385 is a wasteful number, since it uses less digits than its factorization.

8604681385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720936282.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 8604681385 is about 92761.4218573648. The cubic root of 8604681385 is about 2049.1712997893.

The spelling of 8604681385 in words is "eight billion, six hundred four million, six hundred eighty-one thousand, three hundred eighty-five".