2036605 has 4 divisors (see below), whose sum is σ = 2443932. Its totient is φ = 1629280.

The previous prime is 2036603. The next prime is 2036611. The reversal of 2036605 is 5066302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1454436 + 582169 = 1206^2 + 763^2 .

It is not a de Polignac number, because 2036605 - 2¹ = 2036603 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2036603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203656 + ... + 203665.

It is an arithmetic number, because the mean of its divisors is an integer number (610983).

2^2036605 is an apocalyptic number.

It is an amenable number.

2036605 is a deficient number, since it is larger than the sum of its proper divisors (407327).

2036605 is an equidigital number, since it uses as much as digits as its factorization.

2036605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407326.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2036605 is about 1427.0967031004. The cubic root of 2036605 is about 126.7561194846.

The spelling of 2036605 in words is "two million, thirty-six thousand, six hundred five".