2080665 has 12 divisors (see below), whose sum is σ = 3606564. Its totient is φ = 1109664.

The previous prime is 2080657. The next prime is 2080667. The reversal of 2080665 is 5660802.

It can be written as a sum of positive squares in 2 ways, for example, as 1490841 + 589824 = 1221^2 + 768^2 .

It is not a de Polignac number, because 2080665 - 2³ = 2080657 is a prime.

It is a super-3 number, since 3×2080665³ = 27022637783334238875, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2080667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23074 + ... + 23163.

It is an arithmetic number, because the mean of its divisors is an integer number (300547).

2^2080665 is an apocalyptic number.

It is an amenable number.

2080665 is a deficient number, since it is larger than the sum of its proper divisors (1525899).

2080665 is a wasteful number, since it uses less digits than its factorization.

2080665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46248 (or 46245 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2080665 is about 1442.4510390304. The cubic root of 2080665 is about 127.6636882628.

The spelling of 2080665 in words is "two million, eighty thousand, six hundred sixty-five".