3635873 has 4 divisors (see below), whose sum is σ = 3713280. Its totient is φ = 3558468.

The previous prime is 3635861. The next prime is 3635881. The reversal of 3635873 is 3785363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3785363 = 23 ⋅164581.

It is a cyclic number.

It is not a de Polignac number, because 3635873 - 2⁴ = 3635857 is a prime.

It is a d-powerful number, because it can be written as 3² + 6⁸ + 3⁴ + 5⁹ + 8³ + 7³ + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3635803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38633 + ... + 38726.

It is an arithmetic number, because the mean of its divisors is an integer number (928320).

Almost surely, 2^3635873 is an apocalyptic number.

It is an amenable number.

3635873 is a deficient number, since it is larger than the sum of its proper divisors (77407).

3635873 is an equidigital number, since it uses as much as digits as its factorization.

3635873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77406.

The product of its digits is 45360, while the sum is 35.

The square root of 3635873 is about 1906.7965282116. The cubic root of 3635873 is about 153.7692755704.

The spelling of 3635873 in words is "three million, six hundred thirty-five thousand, eight hundred seventy-three".