7166605 has 8 divisors (see below), whose sum is σ = 9105912. Its totient is φ = 5395968.

The previous prime is 7166603. The next prime is 7166609. The reversal of 7166605 is 5066617.

It can be written as a sum of positive squares in 4 ways, for example, as 3218436 + 3948169 = 1794^2 + 1987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7166605 - 2¹ = 7166603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42072 + ... + 42241.

It is an arithmetic number, because the mean of its divisors is an integer number (1138239).

Almost surely, 2^7166605 is an apocalyptic number.

It is an amenable number.

7166605 is a deficient number, since it is larger than the sum of its proper divisors (1939307).

7166605 is a wasteful number, since it uses less digits than its factorization.

7166605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84335.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7166605 is about 2677.0515497465. The cubic root of 7166605 is about 192.7988723297.

The spelling of 7166605 in words is "seven million, one hundred sixty-six thousand, six hundred five".