7166985 has 40 divisors (see below), whose sum is σ = 13444800. Its totient is φ = 3259872.

The previous prime is 7166977. The next prime is 7166987. The reversal of 7166985 is 5896617.

It is not a de Polignac number, because 7166985 - 2³ = 7166977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7166987) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 35916 + ... + 36114.

It is an arithmetic number, because the mean of its divisors is an integer number (336120).

Almost surely, 2^7166985 is an apocalyptic number.

It is an amenable number.

7166985 is a deficient number, since it is larger than the sum of its proper divisors (6277815).

7166985 is an equidigital number, since it uses as much as digits as its factorization.

7166985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 214 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 7166985 is about 2677.1225224110. The cubic root of 7166985 is about 192.8022799068.

The spelling of 7166985 in words is "seven million, one hundred sixty-six thousand, nine hundred eighty-five".