8516385 has 12 divisors (see below), whose sum is σ = 14761812. Its totient is φ = 4542048.

The previous prime is 8516363. The next prime is 8516407. The reversal of 8516385 is 5836158.

It is an interprime number because it is at equal distance from previous prime (8516363) and next prime (8516407).

It can be written as a sum of positive squares in 2 ways, for example, as 6110784 + 2405601 = 2472^2 + 1551^2 .

It is not a de Polignac number, because 8516385 - 2¹⁰ = 8515361 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94582 + ... + 94671.

It is an arithmetic number, because the mean of its divisors is an integer number (1230151).

Almost surely, 2^8516385 is an apocalyptic number.

It is an amenable number.

8516385 is a deficient number, since it is larger than the sum of its proper divisors (6245427).

8516385 is a wasteful number, since it uses less digits than its factorization.

8516385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189264 (or 189261 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 8516385 is about 2918.2845988697. The cubic root of 8516385 is about 204.2138041007.

The spelling of 8516385 in words is "eight million, five hundred sixteen thousand, three hundred eighty-five".