7116385 has 4 divisors (see below), whose sum is σ = 8539668. Its totient is φ = 5693104.

The previous prime is 7116379. The next prime is 7116409. The reversal of 7116385 is 5836117.

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 1245456 + 5870929 = 1116^2 + 2423^2 .

It is a cyclic number.

It is not a de Polignac number, because 7116385 - 2⁹ = 7115873 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711634 + ... + 711643.

It is an arithmetic number, because the mean of its divisors is an integer number (2134917).

Almost surely, 2^7116385 is an apocalyptic number.

It is an amenable number.

7116385 is a deficient number, since it is larger than the sum of its proper divisors (1423283).

7116385 is a wasteful number, since it uses less digits than its factorization.

7116385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423282.

The product of its digits is 5040, while the sum is 31.

The square root of 7116385 is about 2667.6553375577. The cubic root of 7116385 is about 192.3474701101.

The spelling of 7116385 in words is "seven million, one hundred sixteen thousand, three hundred eighty-five".