3166665 has 16 divisors (see below), whose sum is σ = 5116608. Its totient is φ = 1672256.

The previous prime is 3166661. The next prime is 3166679. The reversal of 3166665 is 5666613.

It is a cyclic number.

It is not a de Polignac number, because 3166665 - 2² = 3166661 is a prime.

3166665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3166661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (319788).

Almost surely, 2^3166665 is an apocalyptic number.

It is an amenable number.

3166665 is a deficient number, since it is larger than the sum of its proper divisors (1949943).

3166665 is a wasteful number, since it uses less digits than its factorization.

3166665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its digits is 19440, while the sum is 33.

The square root of 3166665 is about 1779.5125737123. The cubic root of 3166665 is about 146.8477761524.

The spelling of 3166665 in words is "three million, one hundred sixty-six thousand, six hundred sixty-five".