7116665 has 4 divisors (see below), whose sum is σ = 8540004. Its totient is φ = 5693328.

The previous prime is 7116649. The next prime is 7116667. The reversal of 7116665 is 5666117.

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 4116841 + 2999824 = 2029^2 + 1732^2 .

It is a cyclic number.

It is not a de Polignac number, because 7116665 - 2⁴ = 7116649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7116667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711662 + ... + 711671.

It is an arithmetic number, because the mean of its divisors is an integer number (2135001).

Almost surely, 2^7116665 is an apocalyptic number.

It is an amenable number.

7116665 is a deficient number, since it is larger than the sum of its proper divisors (1423339).

7116665 is a wasteful number, since it uses less digits than its factorization.

7116665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423338.

The product of its digits is 7560, while the sum is 32.

The square root of 7116665 is about 2667.7078175842. The cubic root of 7116665 is about 192.3499927666.

The spelling of 7116665 in words is "seven million, one hundred sixteen thousand, six hundred sixty-five".