2064665 has 8 divisors (see below), whose sum is σ = 2509440. Its totient is φ = 1630512.

The previous prime is 2064653. The next prime is 2064679. The reversal of 2064665 is 5664602.

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 2064665 - 2⁴ = 2064649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (313680).

2^2064665 is an apocalyptic number.

It is an amenable number.

2064665 is a deficient number, since it is larger than the sum of its proper divisors (444775).

2064665 is an equidigital number, since it uses as much as digits as its factorization.

2064665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2064665 is about 1436.8942201846. The cubic root of 2064665 is about 127.3356076882.

The spelling of 2064665 in words is "two million, sixty-four thousand, six hundred sixty-five".