2060665 has 4 divisors (see below), whose sum is σ = 2472804. Its totient is φ = 1648528.

The previous prime is 2060657. The next prime is 2060671. The reversal of 2060665 is 5660602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5660602 = 2 ⋅2830301.

It can be written as a sum of positive squares in 2 ways, for example, as 962361 + 1098304 = 981^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 2060665 - 2³ = 2060657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206062 + ... + 206071.

It is an arithmetic number, because the mean of its divisors is an integer number (618201).

2^2060665 is an apocalyptic number.

It is an amenable number.

2060665 is a deficient number, since it is larger than the sum of its proper divisors (412139).

2060665 is an equidigital number, since it uses as much as digits as its factorization.

2060665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412138.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2060665 is about 1435.5016544748. The cubic root of 2060665 is about 127.2533228766.

It can be divided in two parts, 206066 and 5, that multiplied together give a triangular number (1030330 = T₁₄₃₅).

The spelling of 2060665 in words is "two million, sixty thousand, six hundred sixty-five".