3636245 has 4 divisors (see below), whose sum is σ = 4363500. Its totient is φ = 2908992.

The previous prime is 3636233. The next prime is 3636247. The reversal of 3636245 is 5426363.

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 966289 + 2669956 = 983^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 3636245 - 2¹⁰ = 3635221 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3² + 6⁴ + 3⁷ + 6⁸ + 2³ + 4 + 5⁹ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636247) 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, 363620 + ... + 363629.

It is an arithmetic number, because the mean of its divisors is an integer number (1090875).

Almost surely, 2^3636245 is an apocalyptic number.

It is an amenable number.

3636245 is a deficient number, since it is larger than the sum of its proper divisors (727255).

3636245 is an equidigital number, since it uses as much as digits as its factorization.

3636245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727254.

The product of its digits is 12960, while the sum is 29.

The square root of 3636245 is about 1906.8940715205. The cubic root of 3636245 is about 153.7745196315.

The spelling of 3636245 in words is "three million, six hundred thirty-six thousand, two hundred forty-five".